72808745376 has 48 divisors (see below), whose sum is σ = 191148703200. Its totient is φ = 24266312448.

The previous prime is 72808745363. The next prime is 72808745393. The reversal of 72808745376 is 67354780827.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×72808745376² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726610 + ... + 820718.

It is an arithmetic number, because the mean of its divisors is an integer number (3982264650).

Almost surely, 2^72808745376 is an apocalyptic number.

It is an amenable number.

72808745376 is an abundant number, since it is smaller than the sum of its proper divisors (118339957824).

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

72808745376 is a wasteful number, since it uses less digits than its factorization.

72808745376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102181 (or 102173 counting only the distinct ones).

The product of its (nonzero) digits is 15805440, while the sum is 57.

The spelling of 72808745376 in words is "seventy-two billion, eight hundred eight million, seven hundred forty-five thousand, three hundred seventy-six".