199999800004 has 6 divisors (see below), whose sum is σ = 349999650014. Its totient is φ = 99999900000.

The previous prime is 199999799957. The next prime is 199999800019. The reversal of 199999800004 is 400008999991.

It can be written as a sum of positive squares in only one way, i.e., 192854479104 + 7145320900 = 439152^2 + 84530^2 .

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 as a sum of consecutive naturals, namely, 24999974997 + ... + 24999975004.

Almost surely, 2^199999800004 is an apocalyptic number.

It is an amenable number.

199999800004 is a deficient number, since it is larger than the sum of its proper divisors (149999850010).

199999800004 is a wasteful number, since it uses less digits than its factorization.

199999800004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49999950005 (or 49999950003 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 58.

The spelling of 199999800004 in words is "one hundred ninety-nine billion, nine hundred ninety-nine million, eight hundred thousand, four".