12451576617 has 6 divisors (see below), whose sum is σ = 17985610682. Its totient is φ = 8301051072.

The previous prime is 12451576597. The next prime is 12451576667. The reversal of 12451576617 is 71667515421.

12451576617 is a `hidden beast` number, since 1 + 2 + 4 + 515 + 76 + 61 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11710702656 + 740873961 = 108216^2 + 27219^2 .

It is not a de Polignac number, because 12451576617 - 2²⁴ = 12434799401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12451576667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 691754248 + ... + 691754265.

Almost surely, 2^12451576617 is an apocalyptic number.

It is an amenable number.

12451576617 is a deficient number, since it is larger than the sum of its proper divisors (5534034065).

12451576617 is a wasteful number, since it uses less digits than its factorization.

12451576617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383508519 (or 1383508516 counting only the distinct ones).

The product of its digits is 352800, while the sum is 45.

The spelling of 12451576617 in words is "twelve billion, four hundred fifty-one million, five hundred seventy-six thousand, six hundred seventeen".