194638199896 has 32 divisors (see below), whose sum is σ = 439033536000. Its totient is φ = 79026035616.

The previous prime is 194638199881. The next prime is 194638199933. The reversal of 194638199896 is 698991836491.

194638199896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91464256 + ... + 91466383.

It is an arithmetic number, because the mean of its divisors is an integer number (13719798000).

Almost surely, 2^194638199896 is an apocalyptic number.

It is an amenable number.

194638199896 is an abundant number, since it is smaller than the sum of its proper divisors (244395336104).

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

194638199896 is a wasteful number, since it uses less digits than its factorization.

194638199896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182930671 (or 182930667 counting only the distinct ones).

The product of its digits is 181398528, while the sum is 73.

The spelling of 194638199896 in words is "one hundred ninety-four billion, six hundred thirty-eight million, one hundred ninety-nine thousand, eight hundred ninety-six".