799999990001 has 8 divisors (see below), whose sum is σ = 817081616640. Its totient is φ = 782920878048.

The previous prime is 799999989961. The next prime is 799999990057. The reversal of 799999990001 is 100099999997.

It is a happy number.

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 799999990001 - 2⁶ = 799999989937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 799999989898 and 799999989907.

It is not an unprimeable number, because it can be changed into a prime (799999995001) 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, 21485 + ... + 1265093.

It is an arithmetic number, because the mean of its divisors is an integer number (102135202080).

Almost surely, 2^799999990001 is an apocalyptic number.

It is an amenable number.

799999990001 is a deficient number, since it is larger than the sum of its proper divisors (17081626639).

799999990001 is a wasteful number, since it uses less digits than its factorization.

799999990001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257343.

The product of its (nonzero) digits is 33480783, while the sum is 71.

The spelling of 799999990001 in words is "seven hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety thousand, one".