828444878080 has 36 divisors (see below), whose sum is σ = 1984384375092. Its totient is φ = 331377950720.

The previous prime is 828444878077. The next prime is 828444878089. The reversal of 828444878080 is 80878444828.

It can be written as a sum of positive squares in 2 ways, for example, as 321933681664 + 506511196416 = 567392^2 + 711696^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828444878089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323610001 + ... + 323612560.

It is an arithmetic number, because the mean of its divisors is an integer number (55121788197).

Almost surely, 2^828444878080 is an apocalyptic number.

828444878080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

828444878080 is an abundant number, since it is smaller than the sum of its proper divisors (1155939497012).

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

828444878080 is an equidigital number, since it uses as much as digits as its factorization.

828444878080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647222582 (or 647222568 counting only the distinct ones).

The product of its (nonzero) digits is 29360128, while the sum is 61.

The spelling of 828444878080 in words is "eight hundred twenty-eight billion, four hundred forty-four million, eight hundred seventy-eight thousand, eighty".