12525741909 has 48 divisors (see below), whose sum is σ = 19524540672. Its totient is φ = 8018232768.

The previous prime is 12525741869. The next prime is 12525741913. The reversal of 12525741909 is 90914752521.

12525741909 is a `hidden beast` number, since 12 + 52 + 574 + 19 + 0 + 9 = 666.

It is not a de Polignac number, because 12525741909 - 2¹⁷ = 12525610837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525741959) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 594967 + ... + 615659.

It is an arithmetic number, because the mean of its divisors is an integer number (406761264).

Almost surely, 2^12525741909 is an apocalyptic number.

It is an amenable number.

12525741909 is a deficient number, since it is larger than the sum of its proper divisors (6998798763).

12525741909 is an equidigital number, since it uses as much as digits as its factorization.

12525741909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20808 (or 20796 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The spelling of 12525741909 in words is "twelve billion, five hundred twenty-five million, seven hundred forty-one thousand, nine hundred nine".