23815286861 has 16 divisors (see below), whose sum is σ = 24311777280. Its totient is φ = 23324312880.

The previous prime is 23815286851. The next prime is 23815286867. The reversal of 23815286861 is 16868251832.

It is a cyclic number.

It is not a de Polignac number, because 23815286861 - 2¹⁴ = 23815270477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23815286867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11432126 + ... + 11434208.

It is an arithmetic number, because the mean of its divisors is an integer number (1519486080).

Almost surely, 2^23815286861 is an apocalyptic number.

It is an amenable number.

23815286861 is a deficient number, since it is larger than the sum of its proper divisors (496490419).

23815286861 is a wasteful number, since it uses less digits than its factorization.

23815286861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296.

The product of its digits is 1105920, while the sum is 50.

The spelling of 23815286861 in words is "twenty-three billion, eight hundred fifteen million, two hundred eighty-six thousand, eight hundred sixty-one".