13949831183439 has 8 divisors (see below), whose sum is σ = 18617305334832. Its totient is φ = 9291122243840.

The previous prime is 13949831183381. The next prime is 13949831183479. The reversal of 13949831183439 is 93438113894931.

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

It is a cyclic number.

It is not a de Polignac number, because 13949831183439 - 2⁷ = 13949831183311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13949831183439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13949831183479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2191299234 + ... + 2191305599.

It is an arithmetic number, because the mean of its divisors is an integer number (2327163166854).

Almost surely, 2^{13949831183439} is an apocalyptic number.

13949831183439 is a deficient number, since it is larger than the sum of its proper divisors (4667474151393).

13949831183439 is a wasteful number, since it uses less digits than its factorization.

13949831183439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4382605897.

The product of its digits is 60466176, while the sum is 66.

The spelling of 13949831183439 in words is "thirteen trillion, nine hundred forty-nine billion, eight hundred thirty-one million, one hundred eighty-three thousand, four hundred thirty-nine".