23735642163 has 4 divisors (see below), whose sum is σ = 31647522888. Its totient is φ = 15823761440.

The previous prime is 23735642123. The next prime is 23735642167. The reversal of 23735642163 is 36124653732.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23735642163 - 2⁹ = 23735641651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23735642167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3955940358 + ... + 3955940363.

It is an arithmetic number, because the mean of its divisors is an integer number (7911880722).

Almost surely, 2^23735642163 is an apocalyptic number.

23735642163 is a deficient number, since it is larger than the sum of its proper divisors (7911880725).

23735642163 is an equidigital number, since it uses as much as digits as its factorization.

23735642163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7911880724.

The product of its digits is 544320, while the sum is 42.

The spelling of 23735642163 in words is "twenty-three billion, seven hundred thirty-five million, six hundred forty-two thousand, one hundred sixty-three".