799444604840 has 512 divisors, whose sum is σ = 2262977740800. Its totient is φ = 248211025920.

The previous prime is 799444604837. The next prime is 799444604867. The reversal of 799444604840 is 48406444997.

It is a happy number.

It is a super-2 number, since 2×799444604840² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 799444604840.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2728479734 + ... + 2728480026.

It is an arithmetic number, because the mean of its divisors is an integer number (4419878400).

Almost surely, 2^799444604840 is an apocalyptic number.

799444604840 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 799444604840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1131488870400).

799444604840 is an abundant number, since it is smaller than the sum of its proper divisors (1463533135960).

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

799444604840 is a wasteful number, since it uses less digits than its factorization.

799444604840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 59.

The spelling of 799444604840 in words is "seven hundred ninety-nine billion, four hundred forty-four million, six hundred four thousand, eight hundred forty".