64205288464 has 20 divisors (see below), whose sum is σ = 124483760704. Its totient is φ = 32080447008.

The previous prime is 64205288453. The next prime is 64205288501. The reversal of 64205288464 is 46488250246.

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, 1363452 + ... + 1409755.

Almost surely, 2^64205288464 is an apocalyptic number.

It is an amenable number.

64205288464 is a deficient number, since it is larger than the sum of its proper divisors (60278472240).

64205288464 is a wasteful number, since it uses less digits than its factorization.

64205288464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774662 (or 2774656 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 49.

The spelling of 64205288464 in words is "sixty-four billion, two hundred five million, two hundred eighty-eight thousand, four hundred sixty-four".