23155039269 has 8 divisors (see below), whose sum is σ = 34303761920. Its totient is φ = 15436692828.

The previous prime is 23155039247. The next prime is 23155039273. The reversal of 23155039269 is 96293055132.

23155039269 is a `hidden beast` number, since 2 + 3 + 1 + 550 + 3 + 92 + 6 + 9 = 666.

It is not a de Polignac number, because 23155039269 - 2¹² = 23155035173 is a prime.

It is a super-2 number, since 2×23155039269² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23155039279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428796997 + ... + 428797050.

It is an arithmetic number, because the mean of its divisors is an integer number (4287970240).

Almost surely, 2^23155039269 is an apocalyptic number.

It is an amenable number.

23155039269 is a deficient number, since it is larger than the sum of its proper divisors (11148722651).

23155039269 is an equidigital number, since it uses as much as digits as its factorization.

23155039269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857594056 (or 857594050 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The spelling of 23155039269 in words is "twenty-three billion, one hundred fifty-five million, thirty-nine thousand, two hundred sixty-nine".