857930072930 has 64 divisors (see below), whose sum is σ = 1808311599360. Its totient is φ = 286912665600.

The previous prime is 857930072929. The next prime is 857930072947. The reversal of 857930072930 is 39270039758.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14811866 + ... + 14869674.

It is an arithmetic number, because the mean of its divisors is an integer number (28254868740).

Almost surely, 2^857930072930 is an apocalyptic number.

857930072930 is an abundant number, since it is smaller than the sum of its proper divisors (950381526430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857930072930 is a wasteful number, since it uses less digits than its factorization.

857930072930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63035.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 857930072930 in words is "eight hundred fifty-seven billion, nine hundred thirty million, seventy-two thousand, nine hundred thirty".