731868479857152 has 240 divisors, whose sum is σ = 2327997256576992. Its totient is φ = 219491951247360.

The previous prime is 731868479857147. The next prime is 731868479857171. The reversal of 731868479857152 is 251758974868137.

731868479857152 is a `hidden beast` number, since 7 + 3 + 1 + 8 + 68 + 479 + 85 + 7 + 1 + 5 + 2 = 666.

It is a super-2 number, since 2×731868479857152² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69509518 + ... + 79342989.

Almost surely, 2^{731868479857152} is an apocalyptic number.

731868479857152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

731868479857152 is an abundant number, since it is smaller than the sum of its proper divisors (1596128776719840).

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

731868479857152 is a wasteful number, since it uses less digits than its factorization.

731868479857152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148852639 (or 148852620 counting only the distinct ones).

The product of its digits is 5689958400, while the sum is 81.

The spelling of 731868479857152 in words is "seven hundred thirty-one trillion, eight hundred sixty-eight billion, four hundred seventy-nine million, eight hundred fifty-seven thousand, one hundred fifty-two".