12395915973 has 24 divisors (see below), whose sum is σ = 21362578560. Its totient is φ = 7083379800.

The previous prime is 12395915969. The next prime is 12395915999. The reversal of 12395915973 is 37951959321.

12395915973 is a `hidden beast` number, since 12 + 39 + 5 + 9 + 1 + 597 + 3 = 666.

It is not a de Polignac number, because 12395915973 - 2² = 12395915969 is a prime.

It is a super-4 number, since 4×12395915973⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12395913973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4683453 + ... + 4686098.

It is an arithmetic number, because the mean of its divisors is an integer number (890107440).

Almost surely, 2^12395915973 is an apocalyptic number.

It is an amenable number.

12395915973 is a deficient number, since it is larger than the sum of its proper divisors (8966662587).

12395915973 is an equidigital number, since it uses as much as digits as its factorization.

12395915973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9369574 (or 9369561 counting only the distinct ones).

The product of its digits is 2296350, while the sum is 54.

The spelling of 12395915973 in words is "twelve billion, three hundred ninety-five million, nine hundred fifteen thousand, nine hundred seventy-three".