799001991040 has 768 divisors, whose sum is σ = 2314960845120. Its totient is φ = 262406144000.

The previous prime is 799001991013. The next prime is 799001991041. The reversal of 799001991040 is 40199100997.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799001991041) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 6099251775 + ... + 6099251905.

Almost surely, 2^799001991040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 799001991040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1157480422560).

799001991040 is an abundant number, since it is smaller than the sum of its proper divisors (1515958854080).

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

799001991040 is a wasteful number, since it uses less digits than its factorization.

799001991040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 320 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 49.

The spelling of 799001991040 in words is "seven hundred ninety-nine billion, one million, nine hundred ninety-one thousand, forty".