857142672843 has 16 divisors (see below), whose sum is σ = 1149513984000. Its totient is φ = 568103413920.

The previous prime is 857142672823. The next prime is 857142672857. The reversal of 857142672843 is 348276241758.

It is not a de Polignac number, because 857142672843 - 2⁶ = 857142672779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (857142672823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541608 + ... + 1416906.

It is an arithmetic number, because the mean of its divisors is an integer number (71844624000).

Almost surely, 2^857142672843 is an apocalyptic number.

857142672843 is a deficient number, since it is larger than the sum of its proper divisors (292371311157).

857142672843 is a wasteful number, since it uses less digits than its factorization.

857142672843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 877202.

The product of its digits is 18063360, while the sum is 57.

The spelling of 857142672843 in words is "eight hundred fifty-seven billion, one hundred forty-two million, six hundred seventy-two thousand, eight hundred forty-three".