13938834020 has 12 divisors (see below), whose sum is σ = 29271551484. Its totient is φ = 5575533600.

The previous prime is 13938833981. The next prime is 13938834037. The reversal of 13938834020 is 2043883931.

It can be written as a sum of positive squares in 2 ways, for example, as 1514610724 + 12424223296 = 38918^2 + 111464^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348470831 + ... + 348470870.

It is an arithmetic number, because the mean of its divisors is an integer number (2439295957).

Almost surely, 2^13938834020 is an apocalyptic number.

13938834020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13938834020 is an abundant number, since it is smaller than the sum of its proper divisors (15332717464).

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

13938834020 is a wasteful number, since it uses less digits than its factorization.

13938834020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696941710 (or 696941708 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 13938834020 in words is "thirteen billion, nine hundred thirty-eight million, eight hundred thirty-four thousand, twenty".