196194638885 has 16 divisors (see below), whose sum is σ = 269174551296. Its totient is φ = 134479657728.

The previous prime is 196194638879. The next prime is 196194638891. The reversal of 196194638885 is 588836491691.

It is a happy number.

196194638885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (196194638879) and next prime (196194638891).

It is a cyclic number.

It is not a de Polignac number, because 196194638885 - 2²⁰ = 196193590309 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1032164 + ... + 1207373.

It is an arithmetic number, because the mean of its divisors is an integer number (16823409456).

Almost surely, 2^196194638885 is an apocalyptic number.

It is an amenable number.

196194638885 is a deficient number, since it is larger than the sum of its proper divisors (72979912411).

196194638885 is a wasteful number, since it uses less digits than its factorization.

196194638885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242052.

The product of its digits is 89579520, while the sum is 68.

The spelling of 196194638885 in words is "one hundred ninety-six billion, one hundred ninety-four million, six hundred thirty-eight thousand, eight hundred eighty-five".