799955559997 has 4 divisors (see below), whose sum is σ = 872678792736. Its totient is φ = 727232327260.

The previous prime is 799955559917. The next prime is 799955560031.

799955559997 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 799955559997 - 2¹⁵ = 799955527229 is a prime.

It is a super-2 number, since 2×799955559997² (a number of 25 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 (799955559917) 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 3 ways as a sum of consecutive naturals, for example, 36361616353 + ... + 36361616374.

It is an arithmetic number, because the mean of its divisors is an integer number (218169698184).

Almost surely, 2^799955559997 is an apocalyptic number.

It is an amenable number.

799955559997 is a deficient number, since it is larger than the sum of its proper divisors (72723232739).

799955559997 is a wasteful number, since it uses less digits than its factorization.

799955559997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72723232738.

The product of its digits is 16275380625, while the sum is 88.

The spelling of 799955559997 in words is "seven hundred ninety-nine billion, nine hundred fifty-five million, five hundred fifty-nine thousand, nine hundred ninety-seven".