842157264125 has 16 divisors (see below), whose sum is σ = 1055008551168. Its totient is φ = 671164090000.

The previous prime is 842157264119. The next prime is 842157264187. The reversal of 842157264125 is 521462751248.

It is not a de Polignac number, because 842157264125 - 2⁶ = 842157264061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 842157264125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12775601 + ... + 12841350.

It is an arithmetic number, because the mean of its divisors is an integer number (65938034448).

Almost surely, 2^842157264125 is an apocalyptic number.

It is an amenable number.

842157264125 is a deficient number, since it is larger than the sum of its proper divisors (212851287043).

842157264125 is a wasteful number, since it uses less digits than its factorization.

842157264125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25617229 (or 25617219 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 47.

The spelling of 842157264125 in words is "eight hundred forty-two billion, one hundred fifty-seven million, two hundred sixty-four thousand, one hundred twenty-five".