12009857137235 has 8 divisors (see below), whose sum is σ = 15170345857680. Its totient is φ = 9102207514464.

The previous prime is 12009857137207. The next prime is 12009857137241. The reversal of 12009857137235 is 53273175890021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12009857137235 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63209774312 + ... + 63209774501.

It is an arithmetic number, because the mean of its divisors is an integer number (1896293232210).

Almost surely, 2^{12009857137235} is an apocalyptic number.

12009857137235 is a deficient number, since it is larger than the sum of its proper divisors (3160488720445).

12009857137235 is a wasteful number, since it uses less digits than its factorization.

12009857137235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126419548837.

The product of its (nonzero) digits is 3175200, while the sum is 53.

The spelling of 12009857137235 in words is "twelve trillion, nine billion, eight hundred fifty-seven million, one hundred thirty-seven thousand, two hundred thirty-five".