199834999687104 has 112 divisors (see below), whose sum is σ = 553107819664800. Its totient is φ = 63592075165696.

The previous prime is 199834999687067. The next prime is 199834999687109. The reversal of 199834999687104 is 401786999438991.

It is a Harshad number since it is a multiple of its sum of digits (87).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199834999687109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201133137 + ... + 202124240.

Almost surely, 2^{199834999687104} is an apocalyptic number.

It is an amenable number.

199834999687104 is an abundant number, since it is smaller than the sum of its proper divisors (353272819977696).

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

199834999687104 is a wasteful number, since it uses less digits than its factorization.

199834999687104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403257510 (or 403257500 counting only the distinct ones).

The product of its (nonzero) digits is 7618738176, while the sum is 87.

The spelling of 199834999687104 in words is "one hundred ninety-nine trillion, eight hundred thirty-four billion, nine hundred ninety-nine million, six hundred eighty-seven thousand, one hundred four".