15713861813 has 8 divisors (see below), whose sum is σ = 17154438168. Its totient is φ = 14306402304.

The previous prime is 15713861771. The next prime is 15713861851. The reversal of 15713861813 is 31816831751.

It can be written as a sum of positive squares in 4 ways, for example, as 487204 + 15713374609 = 698^2 + 125353^2 .

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 15713861813 - 2²⁶ = 15646752949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15713863813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8278220 + ... + 8280117.

It is an arithmetic number, because the mean of its divisors is an integer number (2144304771).

Almost surely, 2^15713861813 is an apocalyptic number.

15713861813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15713861813 is a deficient number, since it is larger than the sum of its proper divisors (1440576355).

15713861813 is a wasteful number, since it uses less digits than its factorization.

15713861813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16558423.

The product of its digits is 120960, while the sum is 44.

The spelling of 15713861813 in words is "fifteen billion, seven hundred thirteen million, eight hundred sixty-one thousand, eight hundred thirteen".