23979375345287 has 4 divisors (see below), whose sum is σ = 23980612626696. Its totient is φ = 23978138063880.

The previous prime is 23979375345221. The next prime is 23979375345323. The reversal of 23979375345287 is 78254357397932.

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 23979375345287 - 2⁸ = 23979375345031 is a prime.

It is a super-2 number, since 2×23979375345287² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23979375365287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618611633 + ... + 618650394.

It is an arithmetic number, because the mean of its divisors is an integer number (5995153156674).

Almost surely, 2^{23979375345287} is an apocalyptic number.

23979375345287 is a deficient number, since it is larger than the sum of its proper divisors (1237281409).

23979375345287 is a wasteful number, since it uses less digits than its factorization.

23979375345287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237281408.

The product of its digits is 2400451200, while the sum is 74.

The spelling of 23979375345287 in words is "twenty-three trillion, nine hundred seventy-nine billion, three hundred seventy-five million, three hundred forty-five thousand, two hundred eighty-seven".