13439589031894 has 4 divisors (see below), whose sum is σ = 20159383547844. Its totient is φ = 6719794515946.

The previous prime is 13439589031879. The next prime is 13439589031901. The reversal of 13439589031894 is 49813098593431.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3359897257972 + ... + 3359897257975.

It is an arithmetic number, because the mean of its divisors is an integer number (5039845886961).

Almost surely, 2^{13439589031894} is an apocalyptic number.

13439589031894 is a deficient number, since it is larger than the sum of its proper divisors (6719794515950).

13439589031894 is an equidigital number, since it uses as much as digits as its factorization.

13439589031894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6719794515949.

The product of its (nonzero) digits is 100776960, while the sum is 67.

The spelling of 13439589031894 in words is "thirteen trillion, four hundred thirty-nine billion, five hundred eighty-nine million, thirty-one thousand, eight hundred ninety-four".