13149439683 has 4 divisors (see below), whose sum is σ = 17532586248. Its totient is φ = 8766293120.

The previous prime is 13149439651. The next prime is 13149439691. The reversal of 13149439683 is 38693494131.

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 13149439683 - 2⁵ = 13149439651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13149439643) 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, 2191573278 + ... + 2191573283.

It is an arithmetic number, because the mean of its divisors is an integer number (4383146562).

Almost surely, 2^13149439683 is an apocalyptic number.

13149439683 is a deficient number, since it is larger than the sum of its proper divisors (4383146565).

13149439683 is an equidigital number, since it uses as much as digits as its factorization.

13149439683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383146564.

The product of its digits is 1679616, while the sum is 51.

The spelling of 13149439683 in words is "thirteen billion, one hundred forty-nine million, four hundred thirty-nine thousand, six hundred eighty-three".