13479382731 has 16 divisors (see below), whose sum is σ = 18649509120. Its totient is φ = 8653643040.

The previous prime is 13479382727. The next prime is 13479382747. The reversal of 13479382731 is 13728397431.

It is not a de Polignac number, because 13479382731 - 2² = 13479382727 is a prime.

It is a super-2 number, since 2×13479382731² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13479312731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 726696 + ... + 745013.

It is an arithmetic number, because the mean of its divisors is an integer number (1165594320).

Almost surely, 2^13479382731 is an apocalyptic number.

13479382731 is a deficient number, since it is larger than the sum of its proper divisors (5170126389).

13479382731 is a wasteful number, since it uses less digits than its factorization.

13479382731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471826.

The product of its digits is 762048, while the sum is 48.

The spelling of 13479382731 in words is "thirteen billion, four hundred seventy-nine million, three hundred eighty-two thousand, seven hundred thirty-one".