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486494890801920 = 2833571113176171191
BaseRepresentation
bin110111010011101101110101…
…1001001101011101100000000
32100210112110100102000020202000
41232213123223021223230000
51002231213014021130140
64442404400102024000
7204321044626014360
oct15647335311535400
92323473312006660
10486494890801920
11131015362a64530
1246691b76718000
1317b5c36b2178a0
14881c69a8469a0
153b39cadd0ba30
hex1ba76eb26bb00

486494890801920 has 9216 divisors, whose sum is σ = 2542900283965440. Its totient is φ = 84722319360000.

The previous prime is 486494890801883. The next prime is 486494890801961. The reversal of 486494890801920 is 29108098494684.

486494890801920 is a `hidden beast` number, since 4 + 8 + 6 + 49 + 489 + 0 + 80 + 1 + 9 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 1023 ways as a sum of consecutive naturals, for example, 2547093669025 + ... + 2547093669215.

It is an arithmetic number, because the mean of its divisors is an integer number (275922339840).

Almost surely, 2486494890801920 is an apocalyptic number.

486494890801920 is a gapful number since it is divisible by the number (40) 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 486494890801920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271450141982720).

486494890801920 is an abundant number, since it is smaller than the sum of its proper divisors (2056405393163520).

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

486494890801920 is a wasteful number, since it uses less digits than its factorization.

486494890801920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 286654464, while the sum is 72.

The spelling of 486494890801920 in words is "four hundred eighty-six trillion, four hundred ninety-four billion, eight hundred ninety million, eight hundred one thousand, nine hundred twenty".