23145275568 has 20 divisors (see below), whose sum is σ = 59791962008. Its totient is φ = 7715091840.

The previous prime is 23145275551. The next prime is 23145275599. The reversal of 23145275568 is 86557254132.

It is a super-2 number, since 2×23145275568² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 482193241 = 23145275568 / (2 + 3 + 1 + 4 + 5 + 2 + 7 + 5 + 5 + 6 + 8).

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, 241096573 + ... + 241096668.

Almost surely, 2^23145275568 is an apocalyptic number.

It is an amenable number.

23145275568 is an abundant number, since it is smaller than the sum of its proper divisors (36646686440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23145275568 is a wasteful number, since it uses less digits than its factorization.

23145275568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482193252 (or 482193246 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 48.

The spelling of 23145275568 in words is "twenty-three billion, one hundred forty-five million, two hundred seventy-five thousand, five hundred sixty-eight".