804909193198 has 16 divisors (see below), whose sum is σ = 1317198072960. Its totient is φ = 365847276600.

The previous prime is 804909193157. The next prime is 804909193223. The reversal of 804909193198 is 891391909408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622578 + ... + 1413301.

It is an arithmetic number, because the mean of its divisors is an integer number (82324879560).

Almost surely, 2^804909193198 is an apocalyptic number.

804909193198 is a deficient number, since it is larger than the sum of its proper divisors (512288879762).

804909193198 is a wasteful number, since it uses less digits than its factorization.

804909193198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053863.

The product of its (nonzero) digits is 5038848, while the sum is 61.

The spelling of 804909193198 in words is "eight hundred four billion, nine hundred nine million, one hundred ninety-three thousand, one hundred ninety-eight".