196418772965 has 4 divisors (see below), whose sum is σ = 235702527564. Its totient is φ = 157135018368.

The previous prime is 196418772937. The next prime is 196418772967. The reversal of 196418772965 is 569277814691.

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

It can be written as a sum of positive squares in 2 ways, for example, as 137520822244 + 58897950721 = 370838^2 + 242689^2 .

It is a cyclic number.

It is not a de Polignac number, because 196418772965 - 2¹² = 196418768869 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 (196418772967) 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, 19641877292 + ... + 19641877301.

It is an arithmetic number, because the mean of its divisors is an integer number (58925631891).

Almost surely, 2^196418772965 is an apocalyptic number.

It is an amenable number.

196418772965 is a deficient number, since it is larger than the sum of its proper divisors (39283754599).

196418772965 is an equidigital number, since it uses as much as digits as its factorization.

196418772965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39283754598.

The product of its digits is 45722880, while the sum is 65.

The spelling of 196418772965 in words is "one hundred ninety-six billion, four hundred eighteen million, seven hundred seventy-two thousand, nine hundred sixty-five".