639118522362 has 128 divisors (see below), whose sum is σ = 1328684313600. Its totient is φ = 204871680000.

The previous prime is 639118522319. The next prime is 639118522369. The reversal of 639118522362 is 263225811936.

It is not an unprimeable number, because it can be changed into a prime (639118522369) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1063424862 + ... + 1063425462.

It is an arithmetic number, because the mean of its divisors is an integer number (10380346200).

Almost surely, 2^639118522362 is an apocalyptic number.

639118522362 is an abundant number, since it is smaller than the sum of its proper divisors (689565791238).

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

639118522362 is a wasteful number, since it uses less digits than its factorization.

639118522362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112.

The product of its digits is 933120, while the sum is 48.

The spelling of 639118522362 in words is "six hundred thirty-nine billion, one hundred eighteen million, five hundred twenty-two thousand, three hundred sixty-two".