798827808385 has 4 divisors (see below), whose sum is σ = 958593370068. Its totient is φ = 639062246704.

The previous prime is 798827808371. The next prime is 798827808419. The reversal of 798827808385 is 583808728897.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 585818790544 + 213009017841 = 765388^2 + 461529^2 .

It is a cyclic number.

It is not a de Polignac number, because 798827808385 - 2³³ = 790237873793 is a prime.

It is a Duffinian number.

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, 79882780834 + ... + 79882780843.

It is an arithmetic number, because the mean of its divisors is an integer number (239648342517).

Almost surely, 2^798827808385 is an apocalyptic number.

It is an amenable number.

798827808385 is a deficient number, since it is larger than the sum of its proper divisors (159765561683).

798827808385 is a wasteful number, since it uses less digits than its factorization.

798827808385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159765561682.

The product of its (nonzero) digits is 433520640, while the sum is 73.

The spelling of 798827808385 in words is "seven hundred ninety-eight billion, eight hundred twenty-seven million, eight hundred eight thousand, three hundred eighty-five".