72903586056 has 64 divisors (see below), whose sum is σ = 208344576000. Its totient is φ = 20824734528.

The previous prime is 72903586043. The next prime is 72903586079. The reversal of 72903586056 is 65068530927.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 704745 + ... + 801543.

It is an arithmetic number, because the mean of its divisors is an integer number (3255384000).

Almost surely, 2^72903586056 is an apocalyptic number.

It is an amenable number.

72903586056 is an abundant number, since it is smaller than the sum of its proper divisors (135440989944).

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

72903586056 is a wasteful number, since it uses less digits than its factorization.

72903586056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101298 (or 101294 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 72903586056 in words is "seventy-two billion, nine hundred three million, five hundred eighty-six thousand, fifty-six".