196994117647 has 16 divisors (see below), whose sum is σ = 201964871680. Its totient is φ = 192104190432.

The previous prime is 196994117581. The next prime is 196994117653. The reversal of 196994117647 is 746711499691.

It is a cyclic number.

It is not a de Polignac number, because 196994117647 - 2⁷ = 196994117519 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 (196994117147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1776178 + ... + 1883824.

It is an arithmetic number, because the mean of its divisors is an integer number (12622804480).

Almost surely, 2^196994117647 is an apocalyptic number.

196994117647 is a deficient number, since it is larger than the sum of its proper divisors (4970754033).

196994117647 is a wasteful number, since it uses less digits than its factorization.

196994117647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108022.

The product of its digits is 20575296, while the sum is 64.

The spelling of 196994117647 in words is "one hundred ninety-six billion, nine hundred ninety-four million, one hundred seventeen thousand, six hundred forty-seven".