23153598817 has 16 divisors (see below), whose sum is σ = 25253102160. Its totient is φ = 21139550208.

The previous prime is 23153598803. The next prime is 23153598821. The reversal of 23153598817 is 71889535132.

It can be written as a sum of positive squares in 8 ways, for example, as 4109322816 + 19044276001 = 64104^2 + 138001^2 .

It is a cyclic number.

It is not a de Polignac number, because 23153598817 - 2²⁷ = 23019381089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23153598847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157359 + ... + 266587.

It is an arithmetic number, because the mean of its divisors is an integer number (1578318885).

Almost surely, 2^23153598817 is an apocalyptic number.

It is an amenable number.

23153598817 is a deficient number, since it is larger than the sum of its proper divisors (2099503343).

23153598817 is a wasteful number, since it uses less digits than its factorization.

23153598817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109620.

The product of its digits is 1814400, while the sum is 52.

The spelling of 23153598817 in words is "twenty-three billion, one hundred fifty-three million, five hundred ninety-eight thousand, eight hundred seventeen".