800880816986 has 8 divisors (see below), whose sum is σ = 1201361740020. Its totient is φ = 400426903648.

The previous prime is 800880816973. The next prime is 800880816991. The reversal of 800880816986 is 689618088008.

It can be written as a sum of positive squares in 2 ways, for example, as 780793140625 + 20087676361 = 883625^2 + 141731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×800880816986² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6678131 + ... + 6796998.

Almost surely, 2^800880816986 is an apocalyptic number.

800880816986 is a deficient number, since it is larger than the sum of its proper divisors (400480923034).

800880816986 is a wasteful number, since it uses less digits than its factorization.

800880816986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13504848.

The product of its (nonzero) digits is 10616832, while the sum is 62.

The spelling of 800880816986 in words is "eight hundred billion, eight hundred eighty million, eight hundred sixteen thousand, nine hundred eighty-six".