23493408537531 has 32 divisors (see below), whose sum is σ = 31424356454400. Its totient is φ = 15612470353440.

The previous prime is 23493408537481. The next prime is 23493408537559. The reversal of 23493408537531 is 13573580439432.

It is not a de Polignac number, because 23493408537531 - 2²¹ = 23493406440379 is a prime.

It is a super-2 number, since 2×23493408537531² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23493408536531) 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, 3963791290 + ... + 3963797216.

It is an arithmetic number, because the mean of its divisors is an integer number (982011139200).

Almost surely, 2^{23493408537531} is an apocalyptic number.

23493408537531 is a deficient number, since it is larger than the sum of its proper divisors (7930947916869).

23493408537531 is a wasteful number, since it uses less digits than its factorization.

23493408537531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9639.

The product of its (nonzero) digits is 32659200, while the sum is 57.

The spelling of 23493408537531 in words is "twenty-three trillion, four hundred ninety-three billion, four hundred eight million, five hundred thirty-seven thousand, five hundred thirty-one".