23890573563 has 16 divisors (see below), whose sum is σ = 32306718720. Its totient is φ = 15700958784.

The previous prime is 23890573561. The next prime is 23890573583. The reversal of 23890573563 is 36537509832.

It is not a de Polignac number, because 23890573563 - 2¹ = 23890573561 is a prime.

It is a super-2 number, since 2×23890573563² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23890573561) 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, 425358 + ... + 478236.

It is an arithmetic number, because the mean of its divisors is an integer number (2019169920).

Almost surely, 2^23890573563 is an apocalyptic number.

23890573563 is a deficient number, since it is larger than the sum of its proper divisors (8416145157).

23890573563 is a wasteful number, since it uses less digits than its factorization.

23890573563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55018.

The product of its (nonzero) digits is 4082400, while the sum is 51.

The spelling of 23890573563 in words is "twenty-three billion, eight hundred ninety million, five hundred seventy-three thousand, five hundred sixty-three".