12857887274331 has 32 divisors (see below), whose sum is σ = 19258844000256. Its totient is φ = 7562789792000.

The previous prime is 12857887274329. The next prime is 12857887274339. The reversal of 12857887274331 is 13347278875821.

It is a cyclic number.

It is not a de Polignac number, because 12857887274331 - 2¹ = 12857887274329 is a prime.

It is a super-2 number, since 2×12857887274331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12857887274339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24619176 + ... + 25136021.

It is an arithmetic number, because the mean of its divisors is an integer number (601838875008).

Almost surely, 2^{12857887274331} is an apocalyptic number.

12857887274331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12857887274331 is a deficient number, since it is larger than the sum of its proper divisors (6400956725925).

12857887274331 is a wasteful number, since it uses less digits than its factorization.

12857887274331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49755443.

The product of its digits is 126443520, while the sum is 66.

The spelling of 12857887274331 in words is "twelve trillion, eight hundred fifty-seven billion, eight hundred eighty-seven million, two hundred seventy-four thousand, three hundred thirty-one".