77135776356 has 24 divisors (see below), whose sum is σ = 181175425984. Its totient is φ = 25541647200.

The previous prime is 77135776327. The next prime is 77135776379. The reversal of 77135776356 is 65367753177.

It is a junction number, because it is equal to n+sod(n) for n = 77135776296 and 77135776305.

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, 21282895 + ... + 21286518.

Almost surely, 2^77135776356 is an apocalyptic number.

It is an amenable number.

77135776356 is an abundant number, since it is smaller than the sum of its proper divisors (104039649628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77135776356 is a wasteful number, since it uses less digits than its factorization.

77135776356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42569571 (or 42569569 counting only the distinct ones).

The product of its digits is 19448100, while the sum is 57.

The spelling of 77135776356 in words is "seventy-seven billion, one hundred thirty-five million, seven hundred seventy-six thousand, three hundred fifty-six".