799712319999 has 4 divisors (see below), whose sum is σ = 1066283093336. Its totient is φ = 533141546664.

The previous prime is 799712319937. The next prime is 799712320021. The reversal of 799712319999 is 999913217997.

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

It is not a de Polignac number, because 799712319999 - 2¹⁹ = 799711795711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 799712319999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799712311999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133285386664 + ... + 133285386669.

It is an arithmetic number, because the mean of its divisors is an integer number (266570773334).

Almost surely, 2^799712319999 is an apocalyptic number.

799712319999 is a deficient number, since it is larger than the sum of its proper divisors (266570773337).

799712319999 is a wasteful number, since it uses less digits than its factorization.

799712319999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266570773336.

The product of its digits is 156243654, while the sum is 75.

The spelling of 799712319999 in words is "seven hundred ninety-nine billion, seven hundred twelve million, three hundred nineteen thousand, nine hundred ninety-nine".