825881628284 has 24 divisors (see below), whose sum is σ = 1533028282128. Its totient is φ = 387959840000.

The previous prime is 825881628277. The next prime is 825881628311. The reversal of 825881628284 is 482826188528.

It is a super-2 number, since 2×825881628284² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10747967 + ... + 10824534.

It is an arithmetic number, because the mean of its divisors is an integer number (63876178422).

Almost surely, 2^825881628284 is an apocalyptic number.

It is an amenable number.

825881628284 is a deficient number, since it is larger than the sum of its proper divisors (707146653844).

825881628284 is a wasteful number, since it uses less digits than its factorization.

825881628284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21573085 (or 21573083 counting only the distinct ones).

The product of its digits is 31457280, while the sum is 62.

The spelling of 825881628284 in words is "eight hundred twenty-five billion, eight hundred eighty-one million, six hundred twenty-eight thousand, two hundred eighty-four".