199339026854 has 12 divisors (see below), whose sum is σ = 328662280212. Its totient is φ = 90608648460.

The previous prime is 199339026827. The next prime is 199339026857. The reversal of 199339026854 is 458620933991.

It is a junction number, because it is equal to n+sod(n) for n = 199339026793 and 199339026802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199339026857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 411857252 + ... + 411857735.

It is an arithmetic number, because the mean of its divisors is an integer number (27388523351).

Almost surely, 2^199339026854 is an apocalyptic number.

199339026854 is a deficient number, since it is larger than the sum of its proper divisors (129323253358).

199339026854 is a wasteful number, since it uses less digits than its factorization.

199339026854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823715011 (or 823715000 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 59.

The spelling of 199339026854 in words is "one hundred ninety-nine billion, three hundred thirty-nine million, twenty-six thousand, eight hundred fifty-four".