77062139112 has 64 divisors (see below), whose sum is σ = 220318801920. Its totient is φ = 22003627968.

The previous prime is 77062139041. The next prime is 77062139131. The reversal of 77062139112 is 21193126077.

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, 116893 + ... + 409619.

It is an arithmetic number, because the mean of its divisors is an integer number (3442481280).

Almost surely, 2^77062139112 is an apocalyptic number.

It is an amenable number.

77062139112 is an abundant number, since it is smaller than the sum of its proper divisors (143256662808).

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

77062139112 is a wasteful number, since it uses less digits than its factorization.

77062139112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294310 (or 294306 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 39.

The spelling of 77062139112 in words is "seventy-seven billion, sixty-two million, one hundred thirty-nine thousand, one hundred twelve".