772642234764 has 72 divisors (see below), whose sum is σ = 1955904219360. Its totient is φ = 257173638912.

The previous prime is 772642234753. The next prime is 772642234799. The reversal of 772642234764 is 467432246277.

It is a super-2 number, since 2×772642234764² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 772642234764.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139036674 + ... + 139042230.

It is an arithmetic number, because the mean of its divisors is an integer number (27165336380).

Almost surely, 2^772642234764 is an apocalyptic number.

It is an amenable number.

772642234764 is an abundant number, since it is smaller than the sum of its proper divisors (1183261984596).

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

772642234764 is a wasteful number, since it uses less digits than its factorization.

772642234764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10479 (or 10474 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 54.

The spelling of 772642234764 in words is "seven hundred seventy-two billion, six hundred forty-two million, two hundred thirty-four thousand, seven hundred sixty-four".