77810672934 has 24 divisors (see below), whose sum is σ = 168743516760. Its totient is φ = 25913240928.

The previous prime is 77810672923. The next prime is 77810672969. The reversal of 77810672934 is 43927601877.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1950544 + ... + 1990035.

It is an arithmetic number, because the mean of its divisors is an integer number (7030979865).

Almost surely, 2^77810672934 is an apocalyptic number.

77810672934 is an abundant number, since it is smaller than the sum of its proper divisors (90932843826).

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

77810672934 is a wasteful number, since it uses less digits than its factorization.

77810672934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941684 (or 3941681 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 77810672934 in words is "seventy-seven billion, eight hundred ten million, six hundred seventy-two thousand, nine hundred thirty-four".