639095220095 has 32 divisors (see below), whose sum is σ = 790305465600. Its totient is φ = 495839232000.

The previous prime is 639095220079. The next prime is 639095220131. The reversal of 639095220095 is 590022590936.

It is not a de Polignac number, because 639095220095 - 2⁴ = 639095220079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24931385 + ... + 24957005.

It is an arithmetic number, because the mean of its divisors is an integer number (24697045800).

Almost surely, 2^639095220095 is an apocalyptic number.

639095220095 is a deficient number, since it is larger than the sum of its proper divisors (151210245505).

639095220095 is a wasteful number, since it uses less digits than its factorization.

639095220095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26387.

The product of its (nonzero) digits is 1312200, while the sum is 50.

The spelling of 639095220095 in words is "six hundred thirty-nine billion, ninety-five million, two hundred twenty thousand, ninety-five".