23975021799 has 12 divisors (see below), whose sum is σ = 34672778712. Its totient is φ = 15963874800.

The previous prime is 23975021779. The next prime is 23975021803. The reversal of 23975021799 is 99712057932.

23975021799 is a `hidden beast` number, since 2 + 39 + 7 + 502 + 17 + 99 = 666.

It is not a de Polignac number, because 23975021799 - 2¹³ = 23975013607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23975021779) 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, 1614957 + ... + 1629734.

It is an arithmetic number, because the mean of its divisors is an integer number (2889398226).

Almost surely, 2^23975021799 is an apocalyptic number.

23975021799 is a deficient number, since it is larger than the sum of its proper divisors (10697756913).

23975021799 is a wasteful number, since it uses less digits than its factorization.

23975021799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245518 (or 3245515 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 54.

The spelling of 23975021799 in words is "twenty-three billion, nine hundred seventy-five million, twenty-one thousand, seven hundred ninety-nine".