798598581408 has 144 divisors (see below), whose sum is σ = 2296840867776. Its totient is φ = 263182295040.

The previous prime is 798598581401. The next prime is 798598581449. The reversal of 798598581408 is 804185895897.

798598581408 is a `hidden beast` number, since 7 + 9 + 85 + 98 + 58 + 1 + 408 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (798598581401) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 15474688 + ... + 15526208.

It is an arithmetic number, because the mean of its divisors is an integer number (15950283804).

Almost surely, 2^798598581408 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 798598581408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1148420433888).

798598581408 is an abundant number, since it is smaller than the sum of its proper divisors (1498242286368).

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

798598581408 is a wasteful number, since it uses less digits than its factorization.

798598581408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52147 (or 52136 counting only the distinct ones).

The product of its (nonzero) digits is 232243200, while the sum is 72.

The spelling of 798598581408 in words is "seven hundred ninety-eight billion, five hundred ninety-eight million, five hundred eighty-one thousand, four hundred eight".