196556984839 has 4 divisors (see below), whose sum is σ = 196681468360. Its totient is φ = 196432501320.

The previous prime is 196556984773. The next prime is 196556984879. The reversal of 196556984839 is 938489655691.

196556984839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 196556984839 - 2¹³ = 196556976647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196556984879) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 62239392 + ... + 62242549.

It is an arithmetic number, because the mean of its divisors is an integer number (49170367090).

Almost surely, 2^196556984839 is an apocalyptic number.

196556984839 is a deficient number, since it is larger than the sum of its proper divisors (124483521).

196556984839 is a wasteful number, since it uses less digits than its factorization.

196556984839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124483520.

The product of its digits is 503884800, while the sum is 73.

The spelling of 196556984839 in words is "one hundred ninety-six billion, five hundred fifty-six million, nine hundred eighty-four thousand, eight hundred thirty-nine".