72402805896 has 64 divisors (see below), whose sum is σ = 182044012800. Its totient is φ = 23996141568.

The previous prime is 72402805861. The next prime is 72402805913. The reversal of 72402805896 is 69850820427.

It is a super-2 number, since 2×72402805896² (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 15 ways as a sum of consecutive naturals, for example, 12396945 + ... + 12402783.

It is an arithmetic number, because the mean of its divisors is an integer number (2844437700).

Almost surely, 2^72402805896 is an apocalyptic number.

It is an amenable number.

72402805896 is an abundant number, since it is smaller than the sum of its proper divisors (109641206904).

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

72402805896 is a wasteful number, since it uses less digits than its factorization.

72402805896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8718 (or 8714 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 72402805896 in words is "seventy-two billion, four hundred two million, eight hundred five thousand, eight hundred ninety-six".