77096856832 has 54 divisors (see below), whose sum is σ = 157237683218. Its totient is φ = 37727972352.

The previous prime is 77096856827. The next prime is 77096856847. The reversal of 77096856832 is 23865869077.

It can be written as a sum of positive squares in only one way, i.e., 43704411136 + 33392445696 = 209056^2 + 182736^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 497338 + ... + 633670.

Almost surely, 2^77096856832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77096856832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78618841609).

77096856832 is an abundant number, since it is smaller than the sum of its proper divisors (80140826386).

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

77096856832 is an equidigital number, since it uses as much as digits as its factorization.

77096856832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136443 (or 136382 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 77096856832 in words is "seventy-seven billion, ninety-six million, eight hundred fifty-six thousand, eight hundred thirty-two".