76860645688 has 8 divisors (see below), whose sum is σ = 144113710680. Its totient is φ = 38430322840.

The previous prime is 76860645649. The next prime is 76860645737. The reversal of 76860645688 is 88654606867.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4803790348 + ... + 4803790363.

It is an arithmetic number, because the mean of its divisors is an integer number (18014213835).

Almost surely, 2^76860645688 is an apocalyptic number.

It is an amenable number.

76860645688 is a deficient number, since it is larger than the sum of its proper divisors (67253064992).

76860645688 is a wasteful number, since it uses less digits than its factorization.

76860645688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9607580717 (or 9607580713 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 64.

The spelling of 76860645688 in words is "seventy-six billion, eight hundred sixty million, six hundred forty-five thousand, six hundred eighty-eight".