825471809332 has 12 divisors (see below), whose sum is σ = 1444636450656. Its totient is φ = 412718537720.

The previous prime is 825471809329. The next prime is 825471809359. The reversal of 825471809332 is 233908174528.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 825471809332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4234498 + ... + 4425145.

It is an arithmetic number, because the mean of its divisors is an integer number (120386370888).

Almost surely, 2^825471809332 is an apocalyptic number.

It is an amenable number.

825471809332 is a deficient number, since it is larger than the sum of its proper divisors (619164641324).

825471809332 is a wasteful number, since it uses less digits than its factorization.

825471809332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8683478 (or 8683476 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 825471809332 in words is "eight hundred twenty-five billion, four hundred seventy-one million, eight hundred nine thousand, three hundred thirty-two".