12857144834 has 8 divisors (see below), whose sum is σ = 19372200960. Its totient is φ = 6399744516.

The previous prime is 12857144819. The next prime is 12857144843. The reversal of 12857144834 is 43844175821.

12857144834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14413394 + ... + 14414285.

It is an arithmetic number, because the mean of its divisors is an integer number (2421525120).

Almost surely, 2^12857144834 is an apocalyptic number.

12857144834 is a deficient number, since it is larger than the sum of its proper divisors (6515056126).

12857144834 is a wasteful number, since it uses less digits than its factorization.

12857144834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28827904.

The product of its digits is 860160, while the sum is 47.

The spelling of 12857144834 in words is "twelve billion, eight hundred fifty-seven million, one hundred forty-four thousand, eight hundred thirty-four".