23105731886 has 16 divisors (see below), whose sum is σ = 35492252928. Its totient is φ = 11275399800.

The previous prime is 23105731877. The next prime is 23105731963. The reversal of 23105731886 is 68813750132.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6971 + ... + 215081.

It is an arithmetic number, because the mean of its divisors is an integer number (2218265808).

Almost surely, 2^23105731886 is an apocalyptic number.

23105731886 is a deficient number, since it is larger than the sum of its proper divisors (12386521042).

23105731886 is a wasteful number, since it uses less digits than its factorization.

23105731886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209447.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 23105731886 in words is "twenty-three billion, one hundred five million, seven hundred thirty-one thousand, eight hundred eighty-six".