23890238690 has 32 divisors (see below), whose sum is σ = 44999369856. Its totient is φ = 9114688000.

The previous prime is 23890238653. The next prime is 23890238711. The reversal of 23890238690 is 9683209832.

It is a super-2 number, since 2×23890238690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65936 + ... + 228315.

It is an arithmetic number, because the mean of its divisors is an integer number (1406230308).

Almost surely, 2^23890238690 is an apocalyptic number.

23890238690 is a deficient number, since it is larger than the sum of its proper divisors (21109131166).

23890238690 is a wasteful number, since it uses less digits than its factorization.

23890238690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294634.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 23890238690 in words is "twenty-three billion, eight hundred ninety million, two hundred thirty-eight thousand, six hundred ninety".