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68375785360 = 2451316524407
BaseRepresentation
bin111111101011100000…
…111010111110010000
320112111020002210020211
4333223200322332100
52110013200112420
651224510213504
74640262405001
oct775340727620
9215436083224
1068375785360
1126aa8391623
1211302ab4294
1365a8ab3cbc
14344901b1a8
151ba2c2be5a
hexfeb83af90

68375785360 has 40 divisors (see below), whose sum is σ = 160187265216. Its totient is φ = 27141528960.

The previous prime is 68375785319. The next prime is 68375785399. The reversal of 68375785360 is 6358757386.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 68375785295 and 68375785304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3251724 + ... + 3272683.

Almost surely, 268375785360 is an apocalyptic number.

It is an amenable number.

68375785360 is an abundant number, since it is smaller than the sum of its proper divisors (91811479856).

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

68375785360 is a wasteful number, since it uses less digits than its factorization.

68375785360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6524551 (or 6524545 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 58.

The spelling of 68375785360 in words is "sixty-eight billion, three hundred seventy-five million, seven hundred eighty-five thousand, three hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 131 262 524 655 1048 1310 2096 2620 5240 10480 6524407 13048814 26097628 32622035 52195256 65244070 104390512 130488140 260976280 521952560 854697317 1709394634 3418789268 4273486585 6837578536 8546973170 13675157072 17093946340 34187892680 68375785360