810069198 has 8 divisors (see below), whose sum is σ = 1620138408. Its totient is φ = 270023064.

The previous prime is 810069181. The next prime is 810069251. The reversal of 810069198 is 891960018.

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

810069198 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67505761 + ... + 67505772.

It is an arithmetic number, because the mean of its divisors is an integer number (202517301).

Almost surely, 2^810069198 is an apocalyptic number.

810069198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

810069198 is a wasteful number, since it uses less digits than its factorization.

810069198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135011538.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 810069198 is about 28461.7146004945. The cubic root of 810069198 is about 932.1962960025.

The spelling of 810069198 in words is "eight hundred ten million, sixty-nine thousand, one hundred ninety-eight".