196985068899 has 48 divisors (see below), whose sum is σ = 276333657600. Its totient is φ = 124806705408.

The previous prime is 196985068877. The next prime is 196985068901. The reversal of 196985068899 is 998860589691.

It is a Cunningham number, because it is equal to 443830²-1.

It is not a de Polignac number, because 196985068899 - 2¹⁹ = 196984544611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196985068499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 234785122 + ... + 234785960.

It is an arithmetic number, because the mean of its divisors is an integer number (5756951200).

Almost surely, 2^196985068899 is an apocalyptic number.

196985068899 is a deficient number, since it is larger than the sum of its proper divisors (79348588701).

196985068899 is a wasteful number, since it uses less digits than its factorization.

196985068899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664 (or 1641 counting only the distinct ones).

The product of its (nonzero) digits is 604661760, while the sum is 78.

The spelling of 196985068899 in words is "one hundred ninety-six billion, nine hundred eighty-five million, sixty-eight thousand, eight hundred ninety-nine".