23545882731 has 12 divisors (see below), whose sum is σ = 36520144872. Its totient is φ = 13454790048.

The previous prime is 23545882687. The next prime is 23545882769. The reversal of 23545882731 is 13728854532.

It is not a de Polignac number, because 23545882731 - 2¹⁵ = 23545849963 is a prime.

It is a super-2 number, since 2×23545882731² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23545886731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80087890 + ... + 80088183.

It is an arithmetic number, because the mean of its divisors is an integer number (3043345406).

Almost surely, 2^23545882731 is an apocalyptic number.

23545882731 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23545882731 is a deficient number, since it is larger than the sum of its proper divisors (12974262141).

23545882731 is a wasteful number, since it uses less digits than its factorization.

23545882731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160176090 (or 160176083 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

The spelling of 23545882731 in words is "twenty-three billion, five hundred forty-five million, eight hundred eighty-two thousand, seven hundred thirty-one".