2261563194 has 16 divisors (see below), whose sum is σ = 4934319840. Its totient is φ = 685322160.

The previous prime is 2261563163. The next prime is 2261563211. The reversal of 2261563194 is 4913651622.

It is a super-2 number, since 2×2261563194² = 10229336160910963272, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17132989 + ... + 17133120.

It is an arithmetic number, because the mean of its divisors is an integer number (308394990).

Almost surely, 2^2261563194 is an apocalyptic number.

2261563194 is an abundant number, since it is smaller than the sum of its proper divisors (2672756646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2261563194 is a wasteful number, since it uses less digits than its factorization.

2261563194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34266125.

The product of its digits is 77760, while the sum is 39.

The square root of 2261563194 is about 47555.8954704882. The cubic root of 2261563194 is about 1312.6116138370.

The spelling of 2261563194 in words is "two billion, two hundred sixty-one million, five hundred sixty-three thousand, one hundred ninety-four".