799783664399 has 8 divisors (see below), whose sum is σ = 807587056320. Its totient is φ = 791988744096.

The previous prime is 799783664347. The next prime is 799783664461. The reversal of 799783664399 is 993466387997.

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 799783664399 - 2¹⁶ = 799783598863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799783664299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1928087 + ... + 2305880.

It is an arithmetic number, because the mean of its divisors is an integer number (100948382040).

Almost surely, 2^799783664399 is an apocalyptic number.

799783664399 is a deficient number, since it is larger than the sum of its proper divisors (7803391921).

799783664399 is a wasteful number, since it uses less digits than its factorization.

799783664399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235809.

The product of its digits is 3333197952, while the sum is 80.

The spelling of 799783664399 in words is "seven hundred ninety-nine billion, seven hundred eighty-three million, six hundred sixty-four thousand, three hundred ninety-nine".