857235522101 has 16 divisors (see below), whose sum is σ = 985290583680. Its totient is φ = 730589879040.

The previous prime is 857235522097. The next prime is 857235522251. The reversal of 857235522101 is 101225532758.

It is not a de Polignac number, because 857235522101 - 2² = 857235522097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857235522601) 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, 451985 + ... + 1385193.

It is an arithmetic number, because the mean of its divisors is an integer number (61580661480).

Almost surely, 2^857235522101 is an apocalyptic number.

It is an amenable number.

857235522101 is a deficient number, since it is larger than the sum of its proper divisors (128055061579).

857235522101 is a wasteful number, since it uses less digits than its factorization.

857235522101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933964.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 857235522101 in words is "eight hundred fifty-seven billion, two hundred thirty-five million, five hundred twenty-two thousand, one hundred one".