199390537904 has 10 divisors (see below), whose sum is σ = 386319167220. Its totient is φ = 99695268944.

The previous prime is 199390537889. The next prime is 199390537961. The reversal of 199390537904 is 409735093991.

199390537904 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 6230954294 + ... + 6230954325.

It is an arithmetic number, because the mean of its divisors is an integer number (38631916722).

Almost surely, 2^199390537904 is an apocalyptic number.

It is an amenable number.

199390537904 is a deficient number, since it is larger than the sum of its proper divisors (186928629316).

199390537904 is a wasteful number, since it uses less digits than its factorization.

199390537904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12461908627 (or 12461908621 counting only the distinct ones).

The product of its (nonzero) digits is 8266860, while the sum is 59.

The spelling of 199390537904 in words is "one hundred ninety-nine billion, three hundred ninety million, five hundred thirty-seven thousand, nine hundred four".