799757757997 has 4 divisors (see below), whose sum is σ = 872463008736. Its totient is φ = 727052507260.

The previous prime is 799757757989. The next prime is 799757758013.

799757757997 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 799757757997 - 2³ = 799757757989 is a prime.

It is a super-2 number, since 2×799757757997² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799757757947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36352625353 + ... + 36352625374.

It is an arithmetic number, because the mean of its divisors is an integer number (218115752184).

Almost surely, 2^799757757997 is an apocalyptic number.

It is an amenable number.

799757757997 is a deficient number, since it is larger than the sum of its proper divisors (72705250739).

799757757997 is a wasteful number, since it uses less digits than its factorization.

799757757997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72705250738.

The product of its digits is 19297377225, while the sum is 88.

The spelling of 799757757997 in words is "seven hundred ninety-nine billion, seven hundred fifty-seven million, seven hundred fifty-seven thousand, nine hundred ninety-seven".