23939473811 has 12 divisors (see below), whose sum is σ = 26337832872. Its totient is φ = 21758026400.

The previous prime is 23939473751. The next prime is 23939473837. The reversal of 23939473811 is 11837493932.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 23939473811 - 2¹⁴ = 23939457427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23939473811.

It is not an unprimeable number, because it can be changed into a prime (23939473861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5642651 + ... + 5646891.

It is an arithmetic number, because the mean of its divisors is an integer number (2194819406).

Almost surely, 2^23939473811 is an apocalyptic number.

23939473811 is a deficient number, since it is larger than the sum of its proper divisors (2398359061).

23939473811 is an frugal number, since it uses more digits than its factorization.

23939473811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8515 (or 4252 counting only the distinct ones).

The product of its digits is 979776, while the sum is 50.

The spelling of 23939473811 in words is "twenty-three billion, nine hundred thirty-nine million, four hundred seventy-three thousand, eight hundred eleven".