13949831183438 has 8 divisors (see below), whose sum is σ = 20924818167432. Its totient is φ = 6974891794296.

The previous prime is 13949831183381. The next prime is 13949831183479. The reversal of 13949831183438 is 83438113894931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11156720 + ... + 12343907.

It is an arithmetic number, because the mean of its divisors is an integer number (2615602270929).

Almost surely, 2^{13949831183438} is an apocalyptic number.

13949831183438 is a deficient number, since it is larger than the sum of its proper divisors (6974986983994).

13949831183438 is a wasteful number, since it uses less digits than its factorization.

13949831183438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23797426.

The product of its digits is 53747712, while the sum is 65.

The spelling of 13949831183438 in words is "thirteen trillion, nine hundred forty-nine billion, eight hundred thirty-one million, one hundred eighty-three thousand, four hundred thirty-eight".