2139468345 has 24 divisors (see below), whose sum is σ = 4238185536. Its totient is φ = 978042528.

The previous prime is 2139468319. The next prime is 2139468361. The reversal of 2139468345 is 5438649312.

2139468345 is a `hidden beast` number, since 213 + 94 + 6 + 8 + 345 = 666.

It is not a de Polignac number, because 2139468345 - 2⁵ = 2139468313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2139468345.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3395667 + ... + 3396296.

It is an arithmetic number, because the mean of its divisors is an integer number (176591064).

Almost surely, 2^2139468345 is an apocalyptic number.

It is an amenable number.

2139468345 is a deficient number, since it is larger than the sum of its proper divisors (2098717191).

2139468345 is a wasteful number, since it uses less digits than its factorization.

2139468345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6791981 (or 6791978 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 2139468345 is about 46254.3873054222. The cubic root of 2139468345 is about 1288.5520169022.

The spelling of 2139468345 in words is "two billion, one hundred thirty-nine million, four hundred sixty-eight thousand, three hundred forty-five".