2265949691 has 2 divisors, whose sum is σ = 2265949692. Its totient is φ = 2265949690.

The previous prime is 2265949663. The next prime is 2265949729. The reversal of 2265949691 is 1969495622.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2265949691 - 2¹⁰ = 2265948667 is a prime.

It is not a weakly prime, because it can be changed into another prime (2265949591) 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 as a sum of consecutive naturals, namely, 1132974845 + 1132974846.

It is an arithmetic number, because the mean of its divisors is an integer number (1132974846).

Almost surely, 2^2265949691 is an apocalyptic number.

2265949691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2265949691 is an equidigital number, since it uses as much as digits as its factorization.

2265949691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2099520, while the sum is 53.

The square root of 2265949691 is about 47601.9925108183. The cubic root of 2265949691 is about 1313.4597069267.

The spelling of 2265949691 in words is "two billion, two hundred sixty-five million, nine hundred forty-nine thousand, six hundred ninety-one".