72900756956 has 24 divisors (see below), whose sum is σ = 129211753440. Its totient is φ = 35985529152.

The previous prime is 72900756949. The next prime is 72900756961. The reversal of 72900756956 is 65965700927.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 181040 + ... + 422583.

It is an arithmetic number, because the mean of its divisors is an integer number (5383823060).

Almost surely, 2^72900756956 is an apocalyptic number.

It is an amenable number.

72900756956 is a deficient number, since it is larger than the sum of its proper divisors (56310996484).

72900756956 is a wasteful number, since it uses less digits than its factorization.

72900756956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604013 (or 604011 counting only the distinct ones).

The product of its (nonzero) digits is 7144200, while the sum is 56.

The spelling of 72900756956 in words is "seventy-two billion, nine hundred million, seven hundred fifty-six thousand, nine hundred fifty-six".