12974558889 has 4 divisors (see below), whose sum is σ = 17299411856. Its totient is φ = 8649705924.

The previous prime is 12974558827. The next prime is 12974558893. The reversal of 12974558889 is 98885547921.

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: 98885547921 = 3 ⋅32961849307.

It is not a de Polignac number, because 12974558889 - 2⁷ = 12974558761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12974558089) 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, 2162426479 + ... + 2162426484.

It is an arithmetic number, because the mean of its divisors is an integer number (4324852964).

Almost surely, 2^12974558889 is an apocalyptic number.

It is an amenable number.

12974558889 is a deficient number, since it is larger than the sum of its proper divisors (4324852967).

12974558889 is an equidigital number, since it uses as much as digits as its factorization.

12974558889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4324852966.

The product of its digits is 58060800, while the sum is 66.

The spelling of 12974558889 in words is "twelve billion, nine hundred seventy-four million, five hundred fifty-eight thousand, eight hundred eighty-nine".