76902406440 has 32 divisors (see below), whose sum is σ = 230707219680. Its totient is φ = 20507308352.

The previous prime is 76902406433. The next prime is 76902406517. The reversal of 76902406440 is 4460420967.

It is a junction number, because it is equal to n+sod(n) for n = 76902406392 and 76902406401.

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, 320426574 + ... + 320426813.

It is an arithmetic number, because the mean of its divisors is an integer number (7209600615).

Almost surely, 2^76902406440 is an apocalyptic number.

It is an amenable number.

76902406440 is an abundant number, since it is smaller than the sum of its proper divisors (153804813240).

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

76902406440 is a wasteful number, since it uses less digits than its factorization.

76902406440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640853401 (or 640853397 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The spelling of 76902406440 in words is "seventy-six billion, nine hundred two million, four hundred six thousand, four hundred forty".