12453716817 has 32 divisors (see below), whose sum is σ = 19306200960. Its totient is φ = 7925636160.

The previous prime is 12453716797. The next prime is 12453716879. The reversal of 12453716817 is 71861735421.

12453716817 is a `hidden beast` number, since 1 + 24 + 537 + 16 + 81 + 7 = 666.

It is not a de Polignac number, because 12453716817 - 2¹⁰ = 12453715793 is a prime.

It is a super-2 number, since 2×12453716817² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12453714817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64659 + ... + 170552.

It is an arithmetic number, because the mean of its divisors is an integer number (603318780).

Almost surely, 2^12453716817 is an apocalyptic number.

It is an amenable number.

12453716817 is a deficient number, since it is larger than the sum of its proper divisors (6852484143).

12453716817 is a wasteful number, since it uses less digits than its factorization.

12453716817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235310 (or 235304 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The spelling of 12453716817 in words is "twelve billion, four hundred fifty-three million, seven hundred sixteen thousand, eight hundred seventeen".