23137574481 has 32 divisors (see below), whose sum is σ = 41479130880. Its totient is φ = 12443735808.

The previous prime is 23137574441. The next prime is 23137574489. The reversal of 23137574481 is 18447573132.

23137574481 is a `hidden beast` number, since 2 + 3 + 1 + 37 + 574 + 48 + 1 = 666.

It is not a de Polignac number, because 23137574481 - 2⁷ = 23137574353 is a prime.

It is a super-2 number, since 2×23137574481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23137574489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3597406 + ... + 3603831.

It is an arithmetic number, because the mean of its divisors is an integer number (1296222840).

Almost surely, 2^23137574481 is an apocalyptic number.

23137574481 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23137574481 is a deficient number, since it is larger than the sum of its proper divisors (18341556399).

23137574481 is a wasteful number, since it uses less digits than its factorization.

23137574481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7201270 (or 7201264 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The spelling of 23137574481 in words is "twenty-three billion, one hundred thirty-seven million, five hundred seventy-four thousand, four hundred eighty-one".