7977394204 has 36 divisors (see below), whose sum is σ = 15134553840. Its totient is φ = 3677581440.

The previous prime is 7977394199. The next prime is 7977394219. The reversal of 7977394204 is 4024937797.

It is a Harshad number since it is a multiple of its sum of digits (52).

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, 614824 + ... + 627664.

Almost surely, 2^7977394204 is an apocalyptic number.

It is an amenable number.

7977394204 is a deficient number, since it is larger than the sum of its proper divisors (7157159636).

7977394204 is a wasteful number, since it uses less digits than its factorization.

7977394204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13790 (or 13775 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 52.

The square root of 7977394204 is about 89316.2594604140. The cubic root of 7977394204 is about 1998.1144064939.

The spelling of 7977394204 in words is "seven billion, nine hundred seventy-seven million, three hundred ninety-four thousand, two hundred four".