2115581713 has 12 divisors (see below), whose sum is σ = 2461743360. Its totient is φ = 1812795432.

The previous prime is 2115581707. The next prime is 2115581729. The reversal of 2115581713 is 3171855112.

It is not a de Polignac number, because 2115581713 - 2⁵ = 2115581681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115561713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 266520 + ... + 274342.

It is an arithmetic number, because the mean of its divisors is an integer number (205145280).

Almost surely, 2^2115581713 is an apocalyptic number.

It is an amenable number.

2115581713 is a deficient number, since it is larger than the sum of its proper divisors (346161647).

2115581713 is an equidigital number, since it uses as much as digits as its factorization.

2115581713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13356 (or 13349 counting only the distinct ones).

The product of its digits is 8400, while the sum is 34.

The square root of 2115581713 is about 45995.4531774609. The cubic root of 2115581713 is about 1283.7386044187.

The spelling of 2115581713 in words is "two billion, one hundred fifteen million, five hundred eighty-one thousand, seven hundred thirteen".