2194835663 has 8 divisors (see below), whose sum is σ = 2219009760. Its totient is φ = 2170735200.

The previous prime is 2194835653. The next prime is 2194835689. The reversal of 2194835663 is 3665384912.

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

It is a cyclic number.

It is not a de Polignac number, because 2194835663 - 2²⁸ = 1926400207 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 (2194835633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42638 + ... + 78788.

It is an arithmetic number, because the mean of its divisors is an integer number (277376220).

Almost surely, 2^2194835663 is an apocalyptic number.

2194835663 is a deficient number, since it is larger than the sum of its proper divisors (24174097).

2194835663 is a wasteful number, since it uses less digits than its factorization.

2194835663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36817.

The product of its digits is 933120, while the sum is 47.

The square root of 2194835663 is about 46849.0732352306. The cubic root of 2194835663 is about 1299.5729688148.

The spelling of 2194835663 in words is "two billion, one hundred ninety-four million, eight hundred thirty-five thousand, six hundred sixty-three".