23654645613 has 12 divisors (see below), whose sum is σ = 34170343740. Its totient is φ = 15768599616.

The previous prime is 23654645587. The next prime is 23654645617. The reversal of 23654645613 is 31654645632.

23654645613 is a `hidden beast` number, since 2 + 3 + 6 + 546 + 45 + 61 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14249913129 + 9404732484 = 119373^2 + 96978^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23654645613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23654645617) 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, 42193 + ... + 221561.

It is an arithmetic number, because the mean of its divisors is an integer number (2847528645).

Almost surely, 2^23654645613 is an apocalyptic number.

It is an amenable number.

23654645613 is a deficient number, since it is larger than the sum of its proper divisors (10515698127).

23654645613 is a wasteful number, since it uses less digits than its factorization.

23654645613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194028 (or 194025 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The spelling of 23654645613 in words is "twenty-three billion, six hundred fifty-four million, six hundred forty-five thousand, six hundred thirteen".