764665204404 has 48 divisors (see below), whose sum is σ = 1813813327872. Its totient is φ = 250688157792.

The previous prime is 764665204403. The next prime is 764665204421. The reversal of 764665204404 is 404402566467.

It is a super-2 number, since 2×764665204404² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764665204403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1499274 + ... + 1943489.

It is an arithmetic number, because the mean of its divisors is an integer number (37787777664).

Almost surely, 2^764665204404 is an apocalyptic number.

It is an amenable number.

764665204404 is an abundant number, since it is smaller than the sum of its proper divisors (1049148123468).

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

764665204404 is a wasteful number, since it uses less digits than its factorization.

764665204404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3443076 (or 3443074 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 48.

The spelling of 764665204404 in words is "seven hundred sixty-four billion, six hundred sixty-five million, two hundred four thousand, four hundred four".