799887767777279 has 8 divisors (see below), whose sum is σ = 809547755125872. Its totient is φ = 790228322936640.

The previous prime is 799887767777243. The next prime is 799887767777281. The reversal of 799887767777279 is 972777767788997.

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 799887767777279 - 2¹² = 799887767773183 is a prime.

It is a super-2 number, since 2×799887767777279² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799887767777479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132659942 + ... + 138558419.

It is an arithmetic number, because the mean of its divisors is an integer number (101193469390734).

Almost surely, 2^{799887767777279} is an apocalyptic number.

799887767777279 is a deficient number, since it is larger than the sum of its proper divisors (9659987348593).

799887767777279 is a wasteful number, since it uses less digits than its factorization.

799887767777279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271253977.

The product of its digits is 3227550665472, while the sum is 107.

The spelling of 799887767777279 in words is "seven hundred ninety-nine trillion, eight hundred eighty-seven billion, seven hundred sixty-seven million, seven hundred seventy-seven thousand, two hundred seventy-nine".