764131777216 has 28 divisors (see below), whose sum is σ = 1537095566392. Its totient is φ = 376832107008.

The previous prime is 764131777159. The next prime is 764131777231. The reversal of 764131777216 is 612777131467.

764131777216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81773130 + ... + 81782473.

Almost surely, 2^764131777216 is an apocalyptic number.

It is an amenable number.

764131777216 is an abundant number, since it is smaller than the sum of its proper divisors (772963789176).

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

764131777216 is a wasteful number, since it uses less digits than its factorization.

764131777216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163555688 (or 163555678 counting only the distinct ones).

The product of its digits is 2074464, while the sum is 52.

The spelling of 764131777216 in words is "seven hundred sixty-four billion, one hundred thirty-one million, seven hundred seventy-seven thousand, two hundred sixteen".