23531764513 has 16 divisors (see below), whose sum is σ = 24094800000. Its totient is φ = 22976271360.

The previous prime is 23531764511. The next prime is 23531764541. The reversal of 23531764513 is 31546713532.

It is a cyclic number.

It is not a de Polignac number, because 23531764513 - 2¹ = 23531764511 is a prime.

It is a super-2 number, since 2×23531764513² (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 (23531764511) 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, 3134238 + ... + 3141736.

It is an arithmetic number, because the mean of its divisors is an integer number (1505925000).

Almost surely, 2^23531764513 is an apocalyptic number.

It is an amenable number.

23531764513 is a deficient number, since it is larger than the sum of its proper divisors (563035487).

23531764513 is a wasteful number, since it uses less digits than its factorization.

23531764513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7992.

The product of its digits is 226800, while the sum is 40.

The spelling of 23531764513 in words is "twenty-three billion, five hundred thirty-one million, seven hundred sixty-four thousand, five hundred thirteen".