872857858722 has 16 divisors (see below), whose sum is σ = 1763712787872. Its totient is φ = 287953107840.

The previous prime is 872857858721. The next prime is 872857858723. The reversal of 872857858722 is 227858758278.

872857858722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (872857858721) and next prime (872857858723).

It is a super-2 number, since 2×872857858722² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (872857858721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749877304 + ... + 749878467.

It is an arithmetic number, because the mean of its divisors is an integer number (110232049242).

Almost surely, 2^872857858722 is an apocalyptic number.

872857858722 is an abundant number, since it is smaller than the sum of its proper divisors (890854929150).

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

872857858722 is a wasteful number, since it uses less digits than its factorization.

872857858722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499755873.

The product of its digits is 280985600, while the sum is 69.

The spelling of 872857858722 in words is "eight hundred seventy-two billion, eight hundred fifty-seven million, eight hundred fifty-eight thousand, seven hundred twenty-two".