12501180189 has 6 divisors (see below), whose sum is σ = 18057260286. Its totient is φ = 8334120120.

The previous prime is 12501180157. The next prime is 12501180217. The reversal of 12501180189 is 98108110521.

It can be written as a sum of positive squares in only one way, i.e., 6643880100 + 5857300089 = 81510^2 + 76533^2 .

It is not a de Polignac number, because 12501180189 - 2⁵ = 12501180157 is a prime.

It is a super-2 number, since 2×12501180189² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501180149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 694510002 + ... + 694510019.

It is an arithmetic number, because the mean of its divisors is an integer number (3009543381).

Almost surely, 2^12501180189 is an apocalyptic number.

It is an amenable number.

12501180189 is a deficient number, since it is larger than the sum of its proper divisors (5556080097).

12501180189 is a wasteful number, since it uses less digits than its factorization.

12501180189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389020027 (or 1389020024 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 36.

The spelling of 12501180189 in words is "twelve billion, five hundred one million, one hundred eighty thousand, one hundred eighty-nine".