77875513672 has 64 divisors (see below), whose sum is σ = 160255117440. Its totient is φ = 35184038400.

The previous prime is 77875513643. The next prime is 77875513697. The reversal of 77875513672 is 27631557877.

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, 28724397 + ... + 28727107.

It is an arithmetic number, because the mean of its divisors is an integer number (2503986210).

Almost surely, 2^77875513672 is an apocalyptic number.

It is an amenable number.

77875513672 is an abundant number, since it is smaller than the sum of its proper divisors (82379603768).

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

77875513672 is a wasteful number, since it uses less digits than its factorization.

77875513672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582 (or 4578 counting only the distinct ones).

The product of its digits is 17287200, while the sum is 58.

The spelling of 77875513672 in words is "seventy-seven billion, eight hundred seventy-five million, five hundred thirteen thousand, six hundred seventy-two".