13018975939 has 4 divisors (see below), whose sum is σ = 13026533656. Its totient is φ = 13011418224.

The previous prime is 13018975909. The next prime is 13018975943. The reversal of 13018975939 is 93957981031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13018975939 - 2²⁵ = 12985421507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13018975939.

It is not an unprimeable number, because it can be changed into a prime (13018975909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3776274 + ... + 3779719.

It is an arithmetic number, because the mean of its divisors is an integer number (3256633414).

Almost surely, 2^13018975939 is an apocalyptic number.

13018975939 is a deficient number, since it is larger than the sum of its proper divisors (7557717).

13018975939 is an equidigital number, since it uses as much as digits as its factorization.

13018975939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7557716.

The product of its (nonzero) digits is 1837080, while the sum is 55.

The spelling of 13018975939 in words is "thirteen billion, eighteen million, nine hundred seventy-five thousand, nine hundred thirty-nine".