7977692108 has 12 divisors (see below), whose sum is σ = 14695748760. Its totient is φ = 3778906752.

The previous prime is 7977692083. The next prime is 7977692123. The reversal of 7977692108 is 8012967797.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52484741 + ... + 52484892.

It is an arithmetic number, because the mean of its divisors is an integer number (1224645730).

Almost surely, 2^7977692108 is an apocalyptic number.

It is an amenable number.

7977692108 is a deficient number, since it is larger than the sum of its proper divisors (6718056652).

7977692108 is a wasteful number, since it uses less digits than its factorization.

7977692108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104969656 (or 104969654 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 56.

The square root of 7977692108 is about 89317.9271367176. The cubic root of 7977692108 is about 1998.1392783944.

The spelling of 7977692108 in words is "seven billion, nine hundred seventy-seven million, six hundred ninety-two thousand, one hundred eight".