842525378864 has 40 divisors (see below), whose sum is σ = 1759116544752. Its totient is φ = 388602397440.

The previous prime is 842525378861. The next prime is 842525378869. The reversal of 842525378864 is 468873525248.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 842525378797 and 842525378806.

It is not an unprimeable number, because it can be changed into a prime (842525378861) 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, 1013027 + ... + 1646594.

Almost surely, 2^842525378864 is an apocalyptic number.

It is an amenable number.

842525378864 is an abundant number, since it is smaller than the sum of its proper divisors (916591165888).

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

842525378864 is a wasteful number, since it uses less digits than its factorization.

842525378864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661165 (or 2661159 counting only the distinct ones).

The product of its digits is 103219200, while the sum is 62.

The spelling of 842525378864 in words is "eight hundred forty-two billion, five hundred twenty-five million, three hundred seventy-eight thousand, eight hundred sixty-four".