23997375449865 has 24 divisors (see below), whose sum is σ = 41595567773760. Its totient is φ = 12798564241824.

The previous prime is 23997375449851. The next prime is 23997375449897. The reversal of 23997375449865 is 56894457379932.

23997375449865 is a `hidden beast` number, since 2 + 3 + 9 + 9 + 7 + 3 + 7 + 544 + 9 + 8 + 65 = 666.

It is not a de Polignac number, because 23997375449865 - 2⁷ = 23997375449737 is a prime.

It is a super-2 number, since 2×23997375449865² (a number of 28 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 23 ways as a sum of consecutive naturals, for example, 25602684 + ... + 26523426.

It is an arithmetic number, because the mean of its divisors is an integer number (1733148657240).

Almost surely, 2^{23997375449865} is an apocalyptic number.

It is an amenable number.

23997375449865 is a deficient number, since it is larger than the sum of its proper divisors (17598192323895).

23997375449865 is a wasteful number, since it uses less digits than its factorization.

23997375449865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499933 (or 1499930 counting only the distinct ones).

The product of its digits is 12345177600, while the sum is 81.

The spelling of 23997375449865 in words is "twenty-three trillion, nine hundred ninety-seven billion, three hundred seventy-five million, four hundred forty-nine thousand, eight hundred sixty-five".