857930085723 has 32 divisors (see below), whose sum is σ = 1165986077760. Its totient is φ = 561036902400.

The previous prime is 857930085713. The next prime is 857930085787. The reversal of 857930085723 is 327580039758.

It is a happy number.

It is not a de Polignac number, because 857930085723 - 2¹² = 857930081627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (857930085713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18297073 + ... + 18343901.

It is an arithmetic number, because the mean of its divisors is an integer number (36437064930).

Almost surely, 2^857930085723 is an apocalyptic number.

857930085723 is a deficient number, since it is larger than the sum of its proper divisors (308055992037).

857930085723 is a wasteful number, since it uses less digits than its factorization.

857930085723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47487.

The product of its (nonzero) digits is 12700800, while the sum is 57.

The spelling of 857930085723 in words is "eight hundred fifty-seven billion, nine hundred thirty million, eighty-five thousand, seven hundred twenty-three".