12009857137296 has 20 divisors (see below), whose sum is σ = 31025464271472. Its totient is φ = 4003285712416.

The previous prime is 12009857137279. The next prime is 12009857137301. The reversal of 12009857137296 is 69273175890021.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125102678466 + ... + 125102678561.

Almost surely, 2^{12009857137296} is an apocalyptic number.

12009857137296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12009857137296 is an abundant number, since it is smaller than the sum of its proper divisors (19015607134176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12009857137296 is a wasteful number, since it uses less digits than its factorization.

12009857137296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250205357038 (or 250205357032 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 60.

The spelling of 12009857137296 in words is "twelve trillion, nine billion, eight hundred fifty-seven million, one hundred thirty-seven thousand, two hundred ninety-six".