2196985775 has 12 divisors (see below), whose sum is σ = 2725272000. Its totient is φ = 1756937280.

The previous prime is 2196985771. The next prime is 2196985781. The reversal of 2196985775 is 5775896912.

It is not a de Polignac number, because 2196985775 - 2² = 2196985771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196985771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59426 + ... + 89024.

It is an arithmetic number, because the mean of its divisors is an integer number (227106000).

Almost surely, 2^2196985775 is an apocalyptic number.

2196985775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2196985775 is a deficient number, since it is larger than the sum of its proper divisors (528286225).

2196985775 is a wasteful number, since it uses less digits than its factorization.

2196985775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32578 (or 32573 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 59.

The square root of 2196985775 is about 46872.0148382806. The cubic root of 2196985775 is about 1299.9971942740.

The spelling of 2196985775 in words is "two billion, one hundred ninety-six million, nine hundred eighty-five thousand, seven hundred seventy-five".