72892518056 has 8 divisors (see below), whose sum is σ = 136673471370. Its totient is φ = 36446259024.

The previous prime is 72892518029. The next prime is 72892518059. The reversal of 72892518056 is 65081529827.

It can be written as a sum of positive squares in only one way, i.e., 71270845156 + 1621672900 = 266966^2 + 40270^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 72892517989 and 72892518007.

It is not an unprimeable number, because it can be changed into a prime (72892518059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4555782371 + ... + 4555782386.

Almost surely, 2^72892518056 is an apocalyptic number.

It is an amenable number.

72892518056 is a deficient number, since it is larger than the sum of its proper divisors (63780953314).

72892518056 is a wasteful number, since it uses less digits than its factorization.

72892518056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9111564763 (or 9111564759 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 72892518056 in words is "seventy-two billion, eight hundred ninety-two million, five hundred eighteen thousand, fifty-six".