639152310356 has 12 divisors (see below), whose sum is σ = 1278304620768. Its totient is φ = 273922418712.

The previous prime is 639152310323. The next prime is 639152310361. The reversal of 639152310356 is 653013251936.

It is a happy number.

639152310356 is an admirable number.

It is a congruent number.

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, 11413434086 + ... + 11413434141.

It is an arithmetic number, because the mean of its divisors is an integer number (106525385064).

Almost surely, 2^639152310356 is an apocalyptic number.

It is an amenable number.

639152310356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

639152310356 is a wasteful number, since it uses less digits than its factorization.

639152310356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22826868238 (or 22826868236 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 44.

The spelling of 639152310356 in words is "six hundred thirty-nine billion, one hundred fifty-two million, three hundred ten thousand, three hundred fifty-six".