12136525699 has 16 divisors (see below), whose sum is σ = 12591394816. Its totient is φ = 11697945480.

The previous prime is 12136525679. The next prime is 12136525727. The reversal of 12136525699 is 99652563121.

It is not a de Polignac number, because 12136525699 - 2⁹ = 12136525187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12136525619) 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, 9145174 + ... + 9146500.

It is an arithmetic number, because the mean of its divisors is an integer number (786962176).

Almost surely, 2^12136525699 is an apocalyptic number.

12136525699 is a deficient number, since it is larger than the sum of its proper divisors (454869117).

12136525699 is an frugal number, since it uses more digits than its factorization.

12136525699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727 (or 1665 counting only the distinct ones).

The product of its digits is 874800, while the sum is 49.

The spelling of 12136525699 in words is "twelve billion, one hundred thirty-six million, five hundred twenty-five thousand, six hundred ninety-nine".