2196811874 has 8 divisors (see below), whose sum is σ = 3298767660. Its totient is φ = 1097222656.

The previous prime is 2196811871. The next prime is 2196811891. The reversal of 2196811874 is 4781186912.

It can be written as a sum of positive squares in 2 ways, for example, as 2192580625 + 4231249 = 46825^2 + 2057^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2196811871) 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, 589319 + ... + 593034.

Almost surely, 2^2196811874 is an apocalyptic number.

2196811874 is a deficient number, since it is larger than the sum of its proper divisors (1101955786).

2196811874 is a wasteful number, since it uses less digits than its factorization.

2196811874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183284.

The product of its digits is 193536, while the sum is 47.

The square root of 2196811874 is about 46870.1597394334. The cubic root of 2196811874 is about 1299.9628932209.

The spelling of 2196811874 in words is "two billion, one hundred ninety-six million, eight hundred eleven thousand, eight hundred seventy-four".