23573787145 has 4 divisors (see below), whose sum is σ = 28288544580. Its totient is φ = 18859029712.

The previous prime is 23573787131. The next prime is 23573787169. The reversal of 23573787145 is 54178737532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8037660409 + 15536126736 = 89653^2 + 124644^2 .

It is a cyclic number.

It is not a de Polignac number, because 23573787145 - 2¹⁵ = 23573754377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23573787092 and 23573787101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2357378710 + ... + 2357378719.

It is an arithmetic number, because the mean of its divisors is an integer number (7072136145).

Almost surely, 2^23573787145 is an apocalyptic number.

It is an amenable number.

23573787145 is a deficient number, since it is larger than the sum of its proper divisors (4714757435).

23573787145 is an equidigital number, since it uses as much as digits as its factorization.

23573787145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714757434.

The product of its digits is 4939200, while the sum is 52.

The spelling of 23573787145 in words is "twenty-three billion, five hundred seventy-three million, seven hundred eighty-seven thousand, one hundred forty-five".