23265129771 has 16 divisors (see below), whose sum is σ = 37118156320. Its totient is φ = 14317002720.

The previous prime is 23265129761. The next prime is 23265129773. The reversal of 23265129771 is 17792156232.

It is a happy number.

23265129771 is a `hidden beast` number, since 23 + 26 + 512 + 97 + 7 + 1 = 666.

It is not a de Polignac number, because 23265129771 - 2⁵ = 23265129739 is a prime.

It is a super-2 number, since 2×23265129771² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23265129773) 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, 33140860 + ... + 33141561.

It is an arithmetic number, because the mean of its divisors is an integer number (2319884770).

Almost surely, 2^23265129771 is an apocalyptic number.

23265129771 is a deficient number, since it is larger than the sum of its proper divisors (13853026549).

23265129771 is a wasteful number, since it uses less digits than its factorization.

23265129771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66282443 (or 66282437 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The spelling of 23265129771 in words is "twenty-three billion, two hundred sixty-five million, one hundred twenty-nine thousand, seven hundred seventy-one".