12136326399 has 48 divisors (see below), whose sum is σ = 18692128000. Its totient is φ = 7566110208.

The previous prime is 12136326383. The next prime is 12136326409. The reversal of 12136326399 is 99362363121.

12136326399 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 6 + 3 + 2 + 639 + 9 = 666.

It is not a de Polignac number, because 12136326399 - 2⁴ = 12136326383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12136326329) 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, 8674302 + ... + 8675700.

Almost surely, 2^12136326399 is an apocalyptic number.

12136326399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12136326399 is a deficient number, since it is larger than the sum of its proper divisors (6555801601).

12136326399 is a wasteful number, since it uses less digits than its factorization.

12136326399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044 (or 2041 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The spelling of 12136326399 in words is "twelve billion, one hundred thirty-six million, three hundred twenty-six thousand, three hundred ninety-nine".