23387890761 has 27 divisors (see below), whose sum is σ = 35667409869. Its totient is φ = 14765793912.

The previous prime is 23387890753. The next prime is 23387890769. The reversal of 23387890761 is 16709878332.

The square root of 23387890761 is 152931.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (23387890753) and next prime (23387890769).

It is not a de Polignac number, because 23387890761 - 2³ = 23387890753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23387890698 and 23387890707.

It is not an unprimeable number, because it can be changed into a prime (23387890769) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 8715726 + ... + 8718408.

Almost surely, 2^23387890761 is an apocalyptic number.

23387890761 is the 152931-st square number.

23387890761 is the 76466-th centered octagonal number.

It is an amenable number.

23387890761 is a deficient number, since it is larger than the sum of its proper divisors (12279519108).

23387890761 is an frugal number, since it uses more digits than its factorization.

23387890761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5410 (or 2705 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 23387890761 in words is "twenty-three billion, three hundred eighty-seven million, eight hundred ninety thousand, seven hundred sixty-one".