23686529970643 has 16 divisors (see below), whose sum is σ = 24513161587200. Its totient is φ = 22872507134400.

The previous prime is 23686529970637. The next prime is 23686529970751. The reversal of 23686529970643 is 34607992568632.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23686529970643 is a prime.

It is a super-2 number, since 2×23686529970643² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23686529970343) 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, 26965218 + ... + 27829768.

It is an arithmetic number, because the mean of its divisors is an integer number (1532072599200).

Almost surely, 2^{23686529970643} is an apocalyptic number.

23686529970643 is a deficient number, since it is larger than the sum of its proper divisors (826631616557).

23686529970643 is an equidigital number, since it uses as much as digits as its factorization.

23686529970643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871842.

The product of its (nonzero) digits is 705438720, while the sum is 70.

The spelling of 23686529970643 in words is "twenty-three trillion, six hundred eighty-six billion, five hundred twenty-nine million, nine hundred seventy thousand, six hundred forty-three".