199484588138 has 8 divisors (see below), whose sum is σ = 326429326080. Its totient is φ = 90674812780.

The previous prime is 199484588137. The next prime is 199484588189. The reversal of 199484588138 is 831885484991.

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

It is not an unprimeable number, because it can be changed into a prime (199484588137) 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 3 ways as a sum of consecutive naturals, for example, 4533740618 + ... + 4533740661.

It is an arithmetic number, because the mean of its divisors is an integer number (40803665760).

Almost surely, 2^199484588138 is an apocalyptic number.

199484588138 is a deficient number, since it is larger than the sum of its proper divisors (126944737942).

199484588138 is a wasteful number, since it uses less digits than its factorization.

199484588138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9067481292.

The product of its digits is 79626240, while the sum is 68.

The spelling of 199484588138 in words is "one hundred ninety-nine billion, four hundred eighty-four million, five hundred eighty-eight thousand, one hundred thirty-eight".