23256887145 has 64 divisors (see below), whose sum is σ = 40150287360. Its totient is φ = 11452723200.

The previous prime is 23256887051. The next prime is 23256887221. The reversal of 23256887145 is 54178865232.

It is not a de Polignac number, because 23256887145 - 2¹² = 23256883049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6702471 + ... + 6705939.

It is an arithmetic number, because the mean of its divisors is an integer number (627348240).

Almost surely, 2^23256887145 is an apocalyptic number.

It is an amenable number.

23256887145 is a deficient number, since it is larger than the sum of its proper divisors (16893400215).

23256887145 is a wasteful number, since it uses less digits than its factorization.

23256887145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986.

The product of its digits is 3225600, while the sum is 51.

The spelling of 23256887145 in words is "twenty-three billion, two hundred fifty-six million, eight hundred eighty-seven thousand, one hundred forty-five".