799689986997 has 48 divisors (see below), whose sum is σ = 1212743327040. Its totient is φ = 467819968000.

The previous prime is 799689986993. The next prime is 799689987001.

It is a happy number.

799689986997 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (799689986993) and next prime (799689987001).

It is not a de Polignac number, because 799689986997 - 2² = 799689986993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (799689986993) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49689922 + ... + 49706012.

It is an arithmetic number, because the mean of its divisors is an integer number (25265485980).

Almost surely, 2^799689986997 is an apocalyptic number.

It is an amenable number.

799689986997 is a deficient number, since it is larger than the sum of its proper divisors (413053340043).

799689986997 is a wasteful number, since it uses less digits than its factorization.

799689986997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20866 (or 20855 counting only the distinct ones).

The product of its digits is 59997563136, while the sum is 96.

The spelling of 799689986997 in words is "seven hundred ninety-nine billion, six hundred eighty-nine million, nine hundred eighty-six thousand, nine hundred ninety-seven".