12725608181 has 16 divisors (see below), whose sum is σ = 14953958208. Its totient is φ = 10676265600.

The previous prime is 12725608171. The next prime is 12725608183. The reversal of 12725608181 is 18180652721.

It is not a de Polignac number, because 12725608181 - 2²⁶ = 12658499317 is a prime.

It is a super-2 number, since 2×12725608181² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12725608183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 801086 + ... + 816816.

It is an arithmetic number, because the mean of its divisors is an integer number (934622388).

Almost surely, 2^12725608181 is an apocalyptic number.

12725608181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12725608181 is a deficient number, since it is larger than the sum of its proper divisors (2228350027).

12725608181 is a wasteful number, since it uses less digits than its factorization.

12725608181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21412.

The product of its (nonzero) digits is 53760, while the sum is 41.

The spelling of 12725608181 in words is "twelve billion, seven hundred twenty-five million, six hundred eight thousand, one hundred eighty-one".