23894578523 has 8 divisors (see below), whose sum is σ = 24037743648. Its totient is φ = 23751471744.

The previous prime is 23894578469. The next prime is 23894578549. The reversal of 23894578523 is 32587549832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23894578523 - 2²⁴ = 23877801307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23894578823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1027715 + ... + 1050707.

It is an arithmetic number, because the mean of its divisors is an integer number (3004717956).

Almost surely, 2^23894578523 is an apocalyptic number.

23894578523 is a deficient number, since it is larger than the sum of its proper divisors (143165125).

23894578523 is a wasteful number, since it uses less digits than its factorization.

23894578523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29173.

The product of its digits is 14515200, while the sum is 56.

The spelling of 23894578523 in words is "twenty-three billion, eight hundred ninety-four million, five hundred seventy-eight thousand, five hundred twenty-three".