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6826641810420 = 22351099831061881
BaseRepresentation
bin110001101010111001110…
…0011110110001111110100
3220011121202101221111012010
41203111303203312033310
51343321430300413140
622304041013524220
71303131355652655
oct143256343661764
926147671844163
106826641810420
1121a2187371693
12923070643670
133a6998a27323
141985a859752c
15bc89b159880
hex635738f63f4

6826641810420 has 96 divisors (see below), whose sum is σ = 19309602090240. Its totient is φ = 1801899924480.

The previous prime is 6826641810403. The next prime is 6826641810421. The reversal of 6826641810420 is 240181466286.

It is a self number, because there is not a number n which added to its sum of digits gives 6826641810420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6826641810421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5897880 + ... + 6959760.

It is an arithmetic number, because the mean of its divisors is an integer number (201141688440).

Almost surely, 26826641810420 is an apocalyptic number.

6826641810420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6826641810420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9654801045120).

6826641810420 is an abundant number, since it is smaller than the sum of its proper divisors (12482960279820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6826641810420 is a wasteful number, since it uses less digits than its factorization.

6826641810420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062985 (or 1062983 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 6826641810420 in words is "six trillion, eight hundred twenty-six billion, six hundred forty-one million, eight hundred ten thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 109 218 327 436 545 654 983 1090 1308 1635 1966 2180 2949 3270 3932 4915 5898 6540 9830 11796 14745 19660 29490 58980 107147 214294 321441 428588 535735 642882 1061881 1071470 1285764 1607205 2123762 2142940 3185643 3214410 4247524 5309405 6371286 6428820 10618810 12742572 15928215 21237620 31856430 63712860 115745029 231490058 347235087 462980116 578725145 694470174 1043829023 1157450290 1388940348 1736175435 2087658046 2314900580 3131487069 3472350870 4175316092 5219145115 6262974138 6944701740 10438290230 12525948276 15657435345 20876580460 31314870690 62629741380 113777363507 227554727014 341332090521 455109454028 568886817535 682664181042 1137773635070 1365328362084 1706660452605 2275547270140 3413320905210 6826641810420