799417890432 has 640 divisors, whose sum is σ = 2869544620800. Its totient is φ = 215979540480.

The previous prime is 799417890431. The next prime is 799417890451. The reversal of 799417890432 is 234098714997.

799417890432 is a `hidden beast` number, since 7 + 9 + 9 + 41 + 78 + 90 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 799417890432.

It is not an unprimeable number, because it can be changed into a prime (799417890431) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 148560382 + ... + 148565762.

It is an arithmetic number, because the mean of its divisors is an integer number (4483663470).

Almost surely, 2^799417890432 is an apocalyptic number.

799417890432 is a gapful number since it is divisible by the number (72) 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 799417890432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434772310400).

799417890432 is an abundant number, since it is smaller than the sum of its proper divisors (2070126730368).

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

799417890432 is a wasteful number, since it uses less digits than its factorization.

799417890432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5526 (or 5505 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 799417890432 in words is "seven hundred ninety-nine billion, four hundred seventeen million, eight hundred ninety thousand, four hundred thirty-two".