23897665725 has 12 divisors (see below), whose sum is σ = 39510807456. Its totient is φ = 12745421680.

The previous prime is 23897665703. The next prime is 23897665769. The reversal of 23897665725 is 52756679832.

It is not a de Polignac number, because 23897665725 - 2⁶ = 23897665661 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 11 ways as a sum of consecutive naturals, for example, 159317697 + ... + 159317846.

It is an arithmetic number, because the mean of its divisors is an integer number (3292567288).

Almost surely, 2^23897665725 is an apocalyptic number.

23897665725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23897665725 is a deficient number, since it is larger than the sum of its proper divisors (15613141731).

23897665725 is a wasteful number, since it uses less digits than its factorization.

23897665725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318635556 (or 318635551 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 60.

The spelling of 23897665725 in words is "twenty-three billion, eight hundred ninety-seven million, six hundred sixty-five thousand, seven hundred twenty-five".