12647837872858 has 8 divisors (see below), whose sum is σ = 18972113922900. Its totient is φ = 6323799898560.

The previous prime is 12647837872849. The next prime is 12647837872889. The reversal of 12647837872858 is 85827873874621.

It can be written as a sum of positive squares in 2 ways, for example, as 12074950859409 + 572887013449 = 3474903^2 + 756893^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59386063 + ... + 59598658.

Almost surely, 2^{12647837872858} is an apocalyptic number.

12647837872858 is a deficient number, since it is larger than the sum of its proper divisors (6324276050042).

12647837872858 is a wasteful number, since it uses less digits than its factorization.

12647837872858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119037872.

The product of its digits is 2023096320, while the sum is 76.

The spelling of 12647837872858 in words is "twelve trillion, six hundred forty-seven billion, eight hundred thirty-seven million, eight hundred seventy-two thousand, eight hundred fifty-eight".