13138013928 has 64 divisors (see below), whose sum is σ = 35385416640. Its totient is φ = 4040884224.

The previous prime is 13138013893. The next prime is 13138013953. The reversal of 13138013928 is 82931083131.

13138013928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 980200 + ... + 993512.

It is an arithmetic number, because the mean of its divisors is an integer number (552897135).

Almost surely, 2^13138013928 is an apocalyptic number.

It is an amenable number.

13138013928 is an abundant number, since it is smaller than the sum of its proper divisors (22247402712).

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

13138013928 is a wasteful number, since it uses less digits than its factorization.

13138013928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16498 (or 16494 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 13138013928 in words is "thirteen billion, one hundred thirty-eight million, thirteen thousand, nine hundred twenty-eight".