857142818 has 16 divisors (see below), whose sum is σ = 1497113280. Its totient is φ = 360415536.

The previous prime is 857142809. The next prime is 857142833. The reversal of 857142818 is 818241758.

857142818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×857142818² = 1469387620897962248, which contains 22 as substring.

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, 576848 + ... + 578331.

It is an arithmetic number, because the mean of its divisors is an integer number (93569580).

Almost surely, 2^857142818 is an apocalyptic number.

857142818 is a deficient number, since it is larger than the sum of its proper divisors (639970462).

857142818 is a wasteful number, since it uses less digits than its factorization.

857142818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155241.

The product of its digits is 143360, while the sum is 44.

The square root of 857142818 is about 29277.0015199644. The cubic root of 857142818 is about 949.9142371332.

The spelling of 857142818 in words is "eight hundred fifty-seven million, one hundred forty-two thousand, eight hundred eighteen".