13990628939388 has 48 divisors (see below), whose sum is σ = 35162983274496. Its totient is φ = 4316884102080.

The previous prime is 13990628939381. The next prime is 13990628939467. The reversal of 13990628939388 is 88393982609931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13990628939381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817583131 + ... + 817600242.

It is an arithmetic number, because the mean of its divisors is an integer number (732562151552).

Almost surely, 2^{13990628939388} is an apocalyptic number.

It is an amenable number.

13990628939388 is an abundant number, since it is smaller than the sum of its proper divisors (21172354335108).

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

13990628939388 is a wasteful number, since it uses less digits than its factorization.

13990628939388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635183434 (or 1635183432 counting only the distinct ones).

The product of its (nonzero) digits is 1088391168, while the sum is 78.

The spelling of 13990628939388 in words is "thirteen trillion, nine hundred ninety billion, six hundred twenty-eight million, nine hundred thirty-nine thousand, three hundred eighty-eight".