13021875238 has 16 divisors (see below), whose sum is σ = 20065301424. Its totient is φ = 6333521760.

The previous prime is 13021875199. The next prime is 13021875257. The reversal of 13021875238 is 83257812031.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13021875238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353256 + ... + 388372.

It is an arithmetic number, because the mean of its divisors is an integer number (1254081339).

Almost surely, 2^13021875238 is an apocalyptic number.

13021875238 is a deficient number, since it is larger than the sum of its proper divisors (7043426186).

13021875238 is a wasteful number, since it uses less digits than its factorization.

13021875238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40167.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 13021875238 in words is "thirteen billion, twenty-one million, eight hundred seventy-five thousand, two hundred thirty-eight".