13311578847 has 32 divisors (see below), whose sum is σ = 21440657920. Its totient is φ = 7176314880.

The previous prime is 13311578779. The next prime is 13311578857. The reversal of 13311578847 is 74887511331.

It is not a de Polignac number, because 13311578847 - 2²⁰ = 13310530271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13311578796 and 13311578805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311578857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26943 + ... + 165375.

It is an arithmetic number, because the mean of its divisors is an integer number (670020560).

Almost surely, 2^13311578847 is an apocalyptic number.

13311578847 is a deficient number, since it is larger than the sum of its proper divisors (8129079073).

13311578847 is a wasteful number, since it uses less digits than its factorization.

13311578847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138703.

The product of its digits is 564480, while the sum is 48.

The spelling of 13311578847 in words is "thirteen billion, three hundred eleven million, five hundred seventy-eight thousand, eight hundred forty-seven".