798865568897 has 4 divisors (see below), whose sum is σ = 871489711536. Its totient is φ = 726241426260.

The previous prime is 798865568873. The next prime is 798865568909.

It is a happy number.

798865568897 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 798865568897 - 2²² = 798861374593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (798865568867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36312071303 + ... + 36312071324.

It is an arithmetic number, because the mean of its divisors is an integer number (217872427884).

Almost surely, 2^798865568897 is an apocalyptic number.

It is an amenable number.

798865568897 is a deficient number, since it is larger than the sum of its proper divisors (72624142639).

798865568897 is a wasteful number, since it uses less digits than its factorization.

798865568897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72624142638.

The product of its digits is 14631321600, while the sum is 86.

The spelling of 798865568897 in words is "seven hundred ninety-eight billion, eight hundred sixty-five million, five hundred sixty-eight thousand, eight hundred ninety-seven".