12890168597 has 4 divisors (see below), whose sum is σ = 12890401440. Its totient is φ = 12889935756.

The previous prime is 12890168593. The next prime is 12890168611. The reversal of 12890168597 is 79586109821.

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, and also an emirpimes, since its reverse is a distinct semiprime: 79586109821 = 16001 ⋅4973821.

It is a cyclic number.

It is not a de Polignac number, because 12890168597 - 2² = 12890168593 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12890168593) 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, 19568 + ... + 161750.

It is an arithmetic number, because the mean of its divisors is an integer number (3222600360).

Almost surely, 2^12890168597 is an apocalyptic number.

It is an amenable number.

12890168597 is a deficient number, since it is larger than the sum of its proper divisors (232843).

12890168597 is an equidigital number, since it uses as much as digits as its factorization.

12890168597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232842.

The product of its (nonzero) digits is 2177280, while the sum is 56.

The spelling of 12890168597 in words is "twelve billion, eight hundred ninety million, one hundred sixty-eight thousand, five hundred ninety-seven".