639335355113 has 32 divisors (see below), whose sum is σ = 795270099456. Its totient is φ = 500466613248.

The previous prime is 639335355107. The next prime is 639335355149. The reversal of 639335355113 is 311553533936.

It is a happy number.

It is not a de Polignac number, because 639335355113 - 2⁴ = 639335355097 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (639335355413) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5671820 + ... + 5783442.

It is an arithmetic number, because the mean of its divisors is an integer number (24852190608).

Almost surely, 2^639335355113 is an apocalyptic number.

It is an amenable number.

639335355113 is a deficient number, since it is larger than the sum of its proper divisors (155934744343).

639335355113 is a wasteful number, since it uses less digits than its factorization.

639335355113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112313.

The product of its digits is 1640250, while the sum is 47.

The spelling of 639335355113 in words is "six hundred thirty-nine billion, three hundred thirty-five million, three hundred fifty-five thousand, one hundred thirteen".