857293358817 has 48 divisors (see below), whose sum is σ = 1339948153152. Its totient is φ = 486108241920.

The previous prime is 857293358809. The next prime is 857293358827. The reversal of 857293358817 is 718853392758.

857293358817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 857293358817 - 2³ = 857293358809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (857293358827) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15331093 + ... + 15386909.

It is an arithmetic number, because the mean of its divisors is an integer number (27915586524).

Almost surely, 2^857293358817 is an apocalyptic number.

It is an amenable number.

857293358817 is a deficient number, since it is larger than the sum of its proper divisors (482654794335).

857293358817 is a wasteful number, since it uses less digits than its factorization.

857293358817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56638 (or 56631 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 66.

The spelling of 857293358817 in words is "eight hundred fifty-seven billion, two hundred ninety-three million, three hundred fifty-eight thousand, eight hundred seventeen".