23867607645 has 24 divisors (see below), whose sum is σ = 47280594816. Its totient is φ = 10910906208.

The previous prime is 23867607641. The next prime is 23867607653. The reversal of 23867607645 is 54670676832.

23867607645 is a `hidden beast` number, since 23 + 8 + 6 + 7 + 607 + 6 + 4 + 5 = 666.

It is not a de Polignac number, because 23867607645 - 2² = 23867607641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23867607591 and 23867607600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23867607641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37884777 + ... + 37885406.

It is an arithmetic number, because the mean of its divisors is an integer number (1970024784).

Almost surely, 2^23867607645 is an apocalyptic number.

It is an amenable number.

23867607645 is a deficient number, since it is larger than the sum of its proper divisors (23412987171).

23867607645 is a wasteful number, since it uses less digits than its factorization.

23867607645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75770201 (or 75770198 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 23867607645 in words is "twenty-three billion, eight hundred sixty-seven million, six hundred seven thousand, six hundred forty-five".