842804440825 has 12 divisors (see below), whose sum is σ = 1069381636048. Its totient is φ = 658563469200.

The previous prime is 842804440811. The next prime is 842804440847. The reversal of 842804440825 is 528044408248.

It is not a de Polignac number, because 842804440825 - 2³³ = 834214506233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392000991 + ... + 392003140.

Almost surely, 2^842804440825 is an apocalyptic number.

It is an amenable number.

842804440825 is a deficient number, since it is larger than the sum of its proper divisors (226577195223).

842804440825 is a wasteful number, since it uses less digits than its factorization.

842804440825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784004184 (or 784004179 counting only the distinct ones).

The product of its (nonzero) digits is 2621440, while the sum is 49.

The spelling of 842804440825 in words is "eight hundred forty-two billion, eight hundred four million, four hundred forty thousand, eight hundred twenty-five".