23479885881 has 8 divisors (see below), whose sum is σ = 34785016160. Its totient is φ = 15653257236.

The previous prime is 23479885879. The next prime is 23479885921. The reversal of 23479885881 is 18858897432.

23479885881 is a `hidden beast` number, since 2 + 3 + 47 + 9 + 8 + 8 + 588 + 1 = 666.

It is not a de Polignac number, because 23479885881 - 2¹ = 23479885879 is a prime.

It is a super-2 number, since 2×23479885881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23479885861) 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, 434812675 + ... + 434812728.

It is an arithmetic number, because the mean of its divisors is an integer number (4348127020).

Almost surely, 2^23479885881 is an apocalyptic number.

It is an amenable number.

23479885881 is a deficient number, since it is larger than the sum of its proper divisors (11305130279).

23479885881 is an equidigital number, since it uses as much as digits as its factorization.

23479885881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869625412 (or 869625406 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The spelling of 23479885881 in words is "twenty-three billion, four hundred seventy-nine million, eight hundred eighty-five thousand, eight hundred eighty-one".