12451577017 has 4 divisors (see below), whose sum is σ = 13583538576. Its totient is φ = 11319615460.

The previous prime is 12451576987. The next prime is 12451577023. The reversal of 12451577017 is 71077515421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12451577017 - 2²⁷ = 12317359289 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12451577417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565980763 + ... + 565980784.

It is an arithmetic number, because the mean of its divisors is an integer number (3395884644).

Almost surely, 2^12451577017 is an apocalyptic number.

It is an amenable number.

12451577017 is a deficient number, since it is larger than the sum of its proper divisors (1131961559).

12451577017 is a wasteful number, since it uses less digits than its factorization.

12451577017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131961558.

The product of its (nonzero) digits is 68600, while the sum is 40.

The spelling of 12451577017 in words is "twelve billion, four hundred fifty-one million, five hundred seventy-seven thousand, seventeen".