2113647609 has 8 divisors (see below), whose sum is σ = 2966523040. Its totient is φ = 1334935296.

The previous prime is 2113647581. The next prime is 2113647623. The reversal of 2113647609 is 9067463112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2113647609 - 2⁵ = 2113647577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113647649) 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, 18540712 + ... + 18540825.

It is an arithmetic number, because the mean of its divisors is an integer number (370815380).

Almost surely, 2^2113647609 is an apocalyptic number.

It is an amenable number.

2113647609 is a deficient number, since it is larger than the sum of its proper divisors (852875431).

2113647609 is a wasteful number, since it uses less digits than its factorization.

2113647609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37081559.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 2113647609 is about 45974.4234221594. The cubic root of 2113647609 is about 1283.3472792697.

The spelling of 2113647609 in words is "two billion, one hundred thirteen million, six hundred forty-seven thousand, six hundred nine".