77685879196 has 24 divisors (see below), whose sum is σ = 143120257280. Its totient is φ = 36794796912.

The previous prime is 77685879157. The next prime is 77685879247. The reversal of 77685879196 is 69197858677.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 778861 + ... + 872923.

Almost surely, 2^77685879196 is an apocalyptic number.

77685879196 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

77685879196 is a deficient number, since it is larger than the sum of its proper divisors (65434378084).

77685879196 is a wasteful number, since it uses less digits than its factorization.

77685879196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104953 (or 104951 counting only the distinct ones).

The product of its digits is 320060160, while the sum is 73.

The spelling of 77685879196 in words is "seventy-seven billion, six hundred eighty-five million, eight hundred seventy-nine thousand, one hundred ninety-six".