23668218925 has 24 divisors (see below), whose sum is σ = 31643427816. Its totient is φ = 17457469440.

The previous prime is 23668218919. The next prime is 23668218947. The reversal of 23668218925 is 52981286632.

It can be written as a sum of positive squares in 12 ways, for example, as 9336777129 + 14331441796 = 96627^2 + 119714^2 .

It is not a de Polignac number, because 23668218925 - 2⁷ = 23668218797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236037 + ... + 321013.

It is an arithmetic number, because the mean of its divisors is an integer number (1318476159).

Almost surely, 2^23668218925 is an apocalyptic number.

23668218925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23668218925 is a deficient number, since it is larger than the sum of its proper divisors (7975208891).

23668218925 is a wasteful number, since it uses less digits than its factorization.

23668218925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85857 (or 85852 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 52.

The spelling of 23668218925 in words is "twenty-three billion, six hundred sixty-eight million, two hundred eighteen thousand, nine hundred twenty-five".