12989628601 has 4 divisors (see below), whose sum is σ = 13046352100. Its totient is φ = 12932905104.

The previous prime is 12989628581. The next prime is 12989628611. The reversal of 12989628601 is 10682698921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11848540201 + 1141088400 = 108851^2 + 33780^2 .

It is a cyclic number.

It is not a de Polignac number, because 12989628601 - 2⁷ = 12989628473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12989628611) 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, 28361406 + ... + 28361863.

It is an arithmetic number, because the mean of its divisors is an integer number (3261588025).

Almost surely, 2^12989628601 is an apocalyptic number.

It is an amenable number.

12989628601 is a deficient number, since it is larger than the sum of its proper divisors (56723499).

12989628601 is an equidigital number, since it uses as much as digits as its factorization.

12989628601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56723498.

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 12989628601 in words is "twelve billion, nine hundred eighty-nine million, six hundred twenty-eight thousand, six hundred one".