196895784959 has 4 divisors (see below), whose sum is σ = 199268023416. Its totient is φ = 194523546504.

The previous prime is 196895784919. The next prime is 196895784973. The reversal of 196895784959 is 959487598691.

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 196895784959 - 2³² = 192600817663 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 (196895784919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186119104 + ... + 1186119269.

It is an arithmetic number, because the mean of its divisors is an integer number (49817005854).

Almost surely, 2^196895784959 is an apocalyptic number.

196895784959 is a deficient number, since it is larger than the sum of its proper divisors (2372238457).

196895784959 is an equidigital number, since it uses as much as digits as its factorization.

196895784959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372238456.

The product of its digits is 1763596800, while the sum is 80.

The spelling of 196895784959 in words is "one hundred ninety-six billion, eight hundred ninety-five million, seven hundred eighty-four thousand, nine hundred fifty-nine".