806698199844 has 72 divisors (see below), whose sum is σ = 2061257918720. Its totient is φ = 265992714432.

The previous prime is 806698199843. The next prime is 806698199851. The reversal of 806698199844 is 448991896608.

It is not an unprimeable number, because it can be changed into a prime (806698199843) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2212527 + ... + 2551209.

Almost surely, 2^806698199844 is an apocalyptic number.

It is an amenable number.

806698199844 is an abundant number, since it is smaller than the sum of its proper divisors (1254559718876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

806698199844 is a wasteful number, since it uses less digits than its factorization.

806698199844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339409 (or 339404 counting only the distinct ones).

The product of its (nonzero) digits is 214990848, while the sum is 72.

The spelling of 806698199844 in words is "eight hundred six billion, six hundred ninety-eight million, one hundred ninety-nine thousand, eight hundred forty-four".