77959831132 has 6 divisors (see below), whose sum is σ = 136429704488. Its totient is φ = 38979915564.

The previous prime is 77959831129. The next prime is 77959831193. The reversal of 77959831132 is 23113895977.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9744978888 + ... + 9744978895.

Almost surely, 2^77959831132 is an apocalyptic number.

It is an amenable number.

77959831132 is a deficient number, since it is larger than the sum of its proper divisors (58469873356).

77959831132 is a wasteful number, since it uses less digits than its factorization.

77959831132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19489957787 (or 19489957785 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 55.

The spelling of 77959831132 in words is "seventy-seven billion, nine hundred fifty-nine million, eight hundred thirty-one thousand, one hundred thirty-two".