23815765797497 has 8 divisors (see below), whose sum is σ = 25412641227360. Its totient is φ = 22253231774880.

The previous prime is 23815765797451. The next prime is 23815765797539. The reversal of 23815765797497 is 79479756751832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23815765797497 - 2¹² = 23815765793401 is a prime.

It is a super-2 number, since 2×23815765797497² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23815765797097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8585350379 + ... + 8585353152.

It is an arithmetic number, because the mean of its divisors is an integer number (3176580153420).

Almost surely, 2^{23815765797497} is an apocalyptic number.

It is an amenable number.

23815765797497 is a deficient number, since it is larger than the sum of its proper divisors (1596875429863).

23815765797497 is a wasteful number, since it uses less digits than its factorization.

23815765797497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17170703623.

The product of its digits is 5601052800, while the sum is 80.

The spelling of 23815765797497 in words is "twenty-three trillion, eight hundred fifteen billion, seven hundred sixty-five million, seven hundred ninety-seven thousand, four hundred ninety-seven".