858722942873 has 16 divisors (see below), whose sum is σ = 874241850000. Its totient is φ = 843251834880.

The previous prime is 858722942867. The next prime is 858722942887. The reversal of 858722942873 is 378249227858.

It can be written as a sum of positive squares in 8 ways, for example, as 60482548624 + 798240394249 = 245932^2 + 893443^2 .

It is a cyclic number.

It is not a de Polignac number, because 858722942873 - 2⁶ = 858722942809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (858722962873) 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, 104603393 + ... + 104611601.

It is an arithmetic number, because the mean of its divisors is an integer number (54640115625).

Almost surely, 2^858722942873 is an apocalyptic number.

It is an amenable number.

858722942873 is a deficient number, since it is larger than the sum of its proper divisors (15518907127).

858722942873 is a wasteful number, since it uses less digits than its factorization.

858722942873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10892.

The product of its digits is 108380160, while the sum is 65.

The spelling of 858722942873 in words is "eight hundred fifty-eight billion, seven hundred twenty-two million, nine hundred forty-two thousand, eight hundred seventy-three".