13988602838 has 32 divisors (see below), whose sum is σ = 24682229760. Its totient is φ = 5822163360.

The previous prime is 13988602819. The next prime is 13988602871. The reversal of 13988602838 is 83820688931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36206 + ... + 171137.

It is an arithmetic number, because the mean of its divisors is an integer number (771319680).

Almost surely, 2^13988602838 is an apocalyptic number.

13988602838 is a deficient number, since it is larger than the sum of its proper divisors (10693626922).

13988602838 is a wasteful number, since it uses less digits than its factorization.

13988602838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207492.

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 13988602838 in words is "thirteen billion, nine hundred eighty-eight million, six hundred two thousand, eight hundred thirty-eight".