64369590464 has 28 divisors (see below), whose sum is σ = 127741984800. Its totient is φ = 32182633728.

The previous prime is 64369590443. The next prime is 64369590487. The reversal of 64369590464 is 46409596346.

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, 1395482 + ... + 1440870.

Almost surely, 2^64369590464 is an apocalyptic number.

64369590464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

64369590464 is a deficient number, since it is larger than the sum of its proper divisors (63372394336).

64369590464 is a wasteful number, since it uses less digits than its factorization.

64369590464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67560 (or 67550 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 56.

The spelling of 64369590464 in words is "sixty-four billion, three hundred sixty-nine million, five hundred ninety thousand, four hundred sixty-four".