198307945904 has 40 divisors (see below), whose sum is σ = 387001292832. Its totient is φ = 98439226880.

The previous prime is 198307945883. The next prime is 198307945943. The reversal of 198307945904 is 409549703891.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1152524 + ... + 1313364.

Almost surely, 2^198307945904 is an apocalyptic number.

It is an amenable number.

198307945904 is a deficient number, since it is larger than the sum of its proper divisors (188693346928).

198307945904 is a wasteful number, since it uses less digits than its factorization.

198307945904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161405 (or 161399 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 198307945904 in words is "one hundred ninety-eight billion, three hundred seven million, nine hundred forty-five thousand, nine hundred four".