12507609089 has 2 divisors, whose sum is σ = 12507609090. Its totient is φ = 12507609088.

The previous prime is 12507609083. The next prime is 12507609137. The reversal of 12507609089 is 98090670521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10490880625 + 2016728464 = 102425^2 + 44908^2 .

It is a cyclic number.

It is not a de Polignac number, because 12507609089 - 2⁴ = 12507609073 is a prime.

It is not a weakly prime, because it can be changed into another prime (12507609083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6253804544 + 6253804545.

It is an arithmetic number, because the mean of its divisors is an integer number (6253804545).

Almost surely, 2^12507609089 is an apocalyptic number.

It is an amenable number.

12507609089 is a deficient number, since it is larger than the sum of its proper divisors (1).

12507609089 is an equidigital number, since it uses as much as digits as its factorization.

12507609089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 12507609089 in words is "twelve billion, five hundred seven million, six hundred nine thousand, eighty-nine".