825521974882 has 16 divisors (see below), whose sum is σ = 1350949936032. Its totient is φ = 375210651520.

The previous prime is 825521974877. The next prime is 825521974889. The reversal of 825521974882 is 288479125528.

It is a self number, because there is not a number n which added to its sum of digits gives 825521974882.

It is not an unprimeable number, because it can be changed into a prime (825521974889) 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, 1011508 + ... + 1635295.

It is an arithmetic number, because the mean of its divisors is an integer number (84434371002).

Almost surely, 2^825521974882 is an apocalyptic number.

825521974882 is a deficient number, since it is larger than the sum of its proper divisors (525427961150).

825521974882 is a wasteful number, since it uses less digits than its factorization.

825521974882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660993.

The product of its digits is 25804800, while the sum is 61.

The spelling of 825521974882 in words is "eight hundred twenty-five billion, five hundred twenty-one million, nine hundred seventy-four thousand, eight hundred eighty-two".