23725871986 has 16 divisors (see below), whose sum is σ = 36319546584. Its totient is φ = 11620088064.

The previous prime is 23725871977. The next prime is 23725872007. The reversal of 23725871986 is 68917852732.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13182484225 + 10543387761 = 114815^2 + 102681^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23725871986.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117591 + ... + 247546.

Almost surely, 2^23725871986 is an apocalyptic number.

23725871986 is a deficient number, since it is larger than the sum of its proper divisors (12593674598).

23725871986 is a wasteful number, since it uses less digits than its factorization.

23725871986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365805.

The product of its digits is 10160640, while the sum is 58.

The spelling of 23725871986 in words is "twenty-three billion, seven hundred twenty-five million, eight hundred seventy-one thousand, nine hundred eighty-six".