857119664 has 20 divisors (see below), whose sum is σ = 1681692960. Its totient is φ = 423134400.

The previous prime is 857119663. The next prime is 857119667. The reversal of 857119664 is 466911758.

857119664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (857119661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337787 + ... + 340314.

It is an arithmetic number, because the mean of its divisors is an integer number (84084648).

Almost surely, 2^857119664 is an apocalyptic number.

It is an amenable number.

857119664 is a deficient number, since it is larger than the sum of its proper divisors (824573296).

857119664 is a wasteful number, since it uses less digits than its factorization.

857119664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678188 (or 678182 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The square root of 857119664 is about 29276.6060874549. The cubic root of 857119664 is about 949.9056837114.

The spelling of 857119664 in words is "eight hundred fifty-seven million, one hundred nineteen thousand, six hundred sixty-four".