2196696472209 has 6 divisors (see below), whose sum is σ = 3173006015426. Its totient is φ = 1464464314800.

The previous prime is 2196696472207. The next prime is 2196696472247. The reversal of 2196696472209 is 9022746966912.

2196696472209 is a `hidden beast` number, since 2 + 19 + 66 + 96 + 472 + 2 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2118980971584 + 77715500625 = 1455672^2 + 278775^2 .

It is not a de Polignac number, because 2196696472209 - 2¹ = 2196696472207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2196696472207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122038692892 + ... + 122038692909.

Almost surely, 2^{2196696472209} is an apocalyptic number.

It is an amenable number.

2196696472209 is a deficient number, since it is larger than the sum of its proper divisors (976309543217).

2196696472209 is a wasteful number, since it uses less digits than its factorization.

2196696472209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244077385807 (or 244077385804 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 63.

The spelling of 2196696472209 in words is "two trillion, one hundred ninety-six billion, six hundred ninety-six million, four hundred seventy-two thousand, two hundred nine".