799968681 has 12 divisors (see below), whose sum is σ = 1205750208. Its totient is φ = 510124824.

The previous prime is 799968649. The next prime is 799968709. The reversal of 799968681 is 186869997.

It is not a de Polignac number, because 799968681 - 2⁵ = 799968649 is a prime.

It is a super-2 number, since 2×799968681² = 1279899781161759522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (799968181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1932085 + ... + 1932498.

It is an arithmetic number, because the mean of its divisors is an integer number (100479184).

Almost surely, 2^799968681 is an apocalyptic number.

It is an amenable number.

799968681 is a deficient number, since it is larger than the sum of its proper divisors (405781527).

799968681 is a wasteful number, since it uses less digits than its factorization.

799968681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864612 (or 3864609 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The square root of 799968681 is about 28283.7175951111. The cubic root of 799968681 is about 928.3056524044.

The spelling of 799968681 in words is "seven hundred ninety-nine million, nine hundred sixty-eight thousand, six hundred eighty-one".