872857858723 has 2 divisors, whose sum is σ = 872857858724. Its totient is φ = 872857858722.

The previous prime is 872857858721. The next prime is 872857858783. The reversal of 872857858723 is 327858758278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 872857858723 - 2¹ = 872857858721 is a prime.

Together with 872857858721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (872857858721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436428929361 + 436428929362.

It is an arithmetic number, because the mean of its divisors is an integer number (436428929362).

Almost surely, 2^872857858723 is an apocalyptic number.

872857858723 is a deficient number, since it is larger than the sum of its proper divisors (1).

872857858723 is an equidigital number, since it uses as much as digits as its factorization.

872857858723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 421478400, while the sum is 70.

The spelling of 872857858723 in words is "eight hundred seventy-two billion, eight hundred fifty-seven million, eight hundred fifty-eight thousand, seven hundred twenty-three".