77231976116 has 12 divisors (see below), whose sum is σ = 135694429920. Its totient is φ = 38462139000.

The previous prime is 77231976061. The next prime is 77231976163. The reversal of 77231976116 is 61167913277.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38461136 + ... + 38463143.

It is an arithmetic number, because the mean of its divisors is an integer number (11307869160).

Almost surely, 2^77231976116 is an apocalyptic number.

It is an amenable number.

77231976116 is a deficient number, since it is larger than the sum of its proper divisors (58462453804).

77231976116 is a wasteful number, since it uses less digits than its factorization.

77231976116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76924534 (or 76924532 counting only the distinct ones).

The product of its digits is 666792, while the sum is 50.

The spelling of 77231976116 in words is "seventy-seven billion, two hundred thirty-one million, nine hundred seventy-six thousand, one hundred sixteen".