2261845567 has 2 divisors, whose sum is σ = 2261845568. Its totient is φ = 2261845566.

The previous prime is 2261845559. The next prime is 2261845577. The reversal of 2261845567 is 7655481622.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2261845567 - 2³ = 2261845559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2261845577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130922783 + 1130922784.

It is an arithmetic number, because the mean of its divisors is an integer number (1130922784).

Almost surely, 2^2261845567 is an apocalyptic number.

2261845567 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261845567 is an equidigital number, since it uses as much as digits as its factorization.

2261845567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 46.

The square root of 2261845567 is about 47558.8642316025. The cubic root of 2261845567 is about 1312.6662413406. Note that the first 3 decimals are identical.

The spelling of 2261845567 in words is "two billion, two hundred sixty-one million, eight hundred forty-five thousand, five hundred sixty-seven".