78616686376 has 32 divisors (see below), whose sum is σ = 151123088160. Its totient is φ = 38320696512.

The previous prime is 78616686361. The next prime is 78616686389. The reversal of 78616686376 is 67368661687.

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, 38575 + ... + 398398.

It is an arithmetic number, because the mean of its divisors is an integer number (4722596505).

Almost surely, 2^78616686376 is an apocalyptic number.

It is an amenable number.

78616686376 is a deficient number, since it is larger than the sum of its proper divisors (72506401784).

78616686376 is a wasteful number, since it uses less digits than its factorization.

78616686376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437545 (or 437541 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 64.

The spelling of 78616686376 in words is "seventy-eight billion, six hundred sixteen million, six hundred eighty-six thousand, three hundred seventy-six".