72934990456 has 8 divisors (see below), whose sum is σ = 136753107120. Its totient is φ = 36467495224.

The previous prime is 72934990439. The next prime is 72934990493. The reversal of 72934990456 is 65409943927.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×72934990456² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72934990456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4558436896 + ... + 4558436911.

It is an arithmetic number, because the mean of its divisors is an integer number (17094138390).

Almost surely, 2^72934990456 is an apocalyptic number.

It is an amenable number.

72934990456 is a deficient number, since it is larger than the sum of its proper divisors (63818116664).

72934990456 is a wasteful number, since it uses less digits than its factorization.

72934990456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9116873813 (or 9116873809 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 72934990456 in words is "seventy-two billion, nine hundred thirty-four million, nine hundred ninety thousand, four hundred fifty-six".