2196361768 has 8 divisors (see below), whose sum is σ = 4118178330. Its totient is φ = 1098180880.

The previous prime is 2196361751. The next prime is 2196361781. The reversal of 2196361768 is 8671636912.

It can be written as a sum of positive squares in only one way, i.e., 1281783204 + 914578564 = 35802^2 + 30242^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137272603 + ... + 137272618.

Almost surely, 2^2196361768 is an apocalyptic number.

It is an amenable number.

2196361768 is a deficient number, since it is larger than the sum of its proper divisors (1921816562).

2196361768 is a wasteful number, since it uses less digits than its factorization.

2196361768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274545227 (or 274545223 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 2196361768 is about 46865.3578669789. The cubic root of 2196361768 is about 1299.8741037845.

The spelling of 2196361768 in words is "two billion, one hundred ninety-six million, three hundred sixty-one thousand, seven hundred sixty-eight".