639913980303 has 16 divisors (see below), whose sum is σ = 1020945382240. Its totient is φ = 393793218432.

The previous prime is 639913980239. The next prime is 639913980313. The reversal of 639913980303 is 303089319936.

It is not a de Polignac number, because 639913980303 - 2⁶ = 639913980239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 639913980303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (639913980313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 911558026 + ... + 911558727.

It is an arithmetic number, because the mean of its divisors is an integer number (63809086390).

Almost surely, 2^639913980303 is an apocalyptic number.

639913980303 is a deficient number, since it is larger than the sum of its proper divisors (381031401937).

639913980303 is a wasteful number, since it uses less digits than its factorization.

639913980303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823116775 (or 1823116769 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 54.

The spelling of 639913980303 in words is "six hundred thirty-nine billion, nine hundred thirteen million, nine hundred eighty thousand, three hundred three".