804839088640 has 40 divisors (see below), whose sum is σ = 1929727477260. Its totient is φ = 321935634432.

The previous prime is 804839088631. The next prime is 804839088661. The reversal of 804839088640 is 46880938408.

It can be written as a sum of positive squares in 2 ways, for example, as 803188779264 + 1650309376 = 896208^2 + 40624^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 157192575 + ... + 157197694.

Almost surely, 2^804839088640 is an apocalyptic number.

804839088640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

804839088640 is an abundant number, since it is smaller than the sum of its proper divisors (1124888388620).

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

804839088640 is an equidigital number, since it uses as much as digits as its factorization.

804839088640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314390292 (or 314390276 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 58.

The spelling of 804839088640 in words is "eight hundred four billion, eight hundred thirty-nine million, eighty-eight thousand, six hundred forty".