198813698460 has 144 divisors (see below), whose sum is σ = 655889139360. Its totient is φ = 48454156800.

The previous prime is 198813698453. The next prime is 198813698483. The reversal of 198813698460 is 64896318891.

198813698460 is a `hidden beast` number, since 1 + 9 + 8 + 81 + 3 + 6 + 98 + 460 = 666.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 184270 + ... + 656949.

It is an arithmetic number, because the mean of its divisors is an integer number (4554785690).

Almost surely, 2^198813698460 is an apocalyptic number.

198813698460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198813698460 is an abundant number, since it is smaller than the sum of its proper divisors (457075440900).

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

198813698460 is a wasteful number, since it uses less digits than its factorization.

198813698460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841348 (or 841343 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 63.

The spelling of 198813698460 in words is "one hundred ninety-eight billion, eight hundred thirteen million, six hundred ninety-eight thousand, four hundred sixty".