798877778897 has 8 divisors (see below), whose sum is σ = 890045649792. Its totient is φ = 710800344400.

The previous prime is 798877778887. The next prime is 798877778903.

798877778897 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 798877778897 - 2¹⁸ = 798877516753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (798877778807) 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 7 ways as a sum of consecutive naturals, for example, 772608554 + ... + 772609587.

It is an arithmetic number, because the mean of its divisors is an integer number (111255706224).

Almost surely, 2^798877778897 is an apocalyptic number.

It is an amenable number.

798877778897 is a deficient number, since it is larger than the sum of its proper divisors (91167870895).

798877778897 is a wasteful number, since it uses less digits than its factorization.

798877778897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545218199.

The product of its digits is 39033114624, while the sum is 92.

The spelling of 798877778897 in words is "seven hundred ninety-eight billion, eight hundred seventy-seven million, seven hundred seventy-eight thousand, eight hundred ninety-seven".