77117307756 has 24 divisors (see below), whose sum is σ = 181962189360. Its totient is φ = 25416940032.

The previous prime is 77117307739. The next prime is 77117307769. The reversal of 77117307756 is 65770371177.

It is a junction number, because it is equal to n+sod(n) for n = 77117307699 and 77117307708.

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, 36102541 + ... + 36104676.

It is an arithmetic number, because the mean of its divisors is an integer number (7581757890).

Almost surely, 2^77117307756 is an apocalyptic number.

It is an amenable number.

77117307756 is an abundant number, since it is smaller than the sum of its proper divisors (104844881604).

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

77117307756 is a wasteful number, since it uses less digits than its factorization.

77117307756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72207313 (or 72207311 counting only the distinct ones).

The product of its (nonzero) digits is 1512630, while the sum is 51.

The spelling of 77117307756 in words is "seventy-seven billion, one hundred seventeen million, three hundred seven thousand, seven hundred fifty-six".