76997707712 has 56 divisors (see below), whose sum is σ = 155049077760. Its totient is φ = 37932261120.

The previous prime is 76997707693. The next prime is 76997707741. The reversal of 76997707712 is 21770779967.

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, 2446637 + ... + 2477907.

Almost surely, 2^76997707712 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 76997707712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77524538880).

76997707712 is an abundant number, since it is smaller than the sum of its proper divisors (78051370048).

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

76997707712 is a wasteful number, since it uses less digits than its factorization.

76997707712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31849 (or 31839 counting only the distinct ones).

The product of its (nonzero) digits is 16336404, while the sum is 62.

The spelling of 76997707712 in words is "seventy-six billion, nine hundred ninety-seven million, seven hundred seven thousand, seven hundred twelve".