2311642645 has 16 divisors (see below), whose sum is σ = 2988558720. Its totient is φ = 1706370624.

The previous prime is 2311642603. The next prime is 2311642661. The reversal of 2311642645 is 5462461132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311642645 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2311642645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201576 + ... + 212734.

It is an arithmetic number, because the mean of its divisors is an integer number (186784920).

Almost surely, 2^2311642645 is an apocalyptic number.

It is an amenable number.

2311642645 is a deficient number, since it is larger than the sum of its proper divisors (676916075).

2311642645 is a wasteful number, since it uses less digits than its factorization.

2311642645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14364.

The product of its digits is 34560, while the sum is 34.

The square root of 2311642645 is about 48079.5449749683. The cubic root of 2311642645 is about 1322.2296730573.

The spelling of 2311642645 in words is "two billion, three hundred eleven million, six hundred forty-two thousand, six hundred forty-five".