23643135675 has 36 divisors (see below), whose sum is σ = 42355931904. Its totient is φ = 12607156800.

The previous prime is 23643135661. The next prime is 23643135767. The reversal of 23643135675 is 57653134632.

It is a happy number.

23643135675 is a `hidden beast` number, since 2 + 36 + 43 + 13 + 567 + 5 = 666.

It is not a de Polignac number, because 23643135675 - 2⁵ = 23643135643 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 23643135675.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1859590 + ... + 1872260.

It is an arithmetic number, because the mean of its divisors is an integer number (1176553664).

Almost surely, 2^23643135675 is an apocalyptic number.

23643135675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23643135675 is a deficient number, since it is larger than the sum of its proper divisors (18712796229).

23643135675 is a wasteful number, since it uses less digits than its factorization.

23643135675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20980 (or 20972 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 45.

The spelling of 23643135675 in words is "twenty-three billion, six hundred forty-three million, one hundred thirty-five thousand, six hundred seventy-five".