196942647865 has 16 divisors (see below), whose sum is σ = 237293312256. Its totient is φ = 156913977600.

The previous prime is 196942647851. The next prime is 196942647893. The reversal of 196942647865 is 568746249691.

It is not a de Polignac number, because 196942647865 - 2⁵ = 196942647833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 196942647865.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156560 + ... + 1315870.

It is an arithmetic number, because the mean of its divisors is an integer number (14830832016).

Almost surely, 2^196942647865 is an apocalyptic number.

It is an amenable number.

196942647865 is a deficient number, since it is larger than the sum of its proper divisors (40350664391).

196942647865 is a wasteful number, since it uses less digits than its factorization.

196942647865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160320.

The product of its digits is 156764160, while the sum is 67.

The spelling of 196942647865 in words is "one hundred ninety-six billion, nine hundred forty-two million, six hundred forty-seven thousand, eight hundred sixty-five".