2261127899 has 2 divisors, whose sum is σ = 2261127900. Its totient is φ = 2261127898.

The previous prime is 2261127893. The next prime is 2261127917. The reversal of 2261127899 is 9987211622.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2261127899 is a prime.

It is a super-2 number, since 2×2261127899² = 10225398751272308402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2261127893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130563949 + 1130563950.

It is an arithmetic number, because the mean of its divisors is an integer number (1130563950).

Almost surely, 2^2261127899 is an apocalyptic number.

2261127899 is a deficient number, since it is larger than the sum of its proper divisors (1).

2261127899 is an equidigital number, since it uses as much as digits as its factorization.

2261127899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 47.

The square root of 2261127899 is about 47551.3185831897. The cubic root of 2261127899 is about 1312.5273933391.

The spelling of 2261127899 in words is "two billion, two hundred sixty-one million, one hundred twenty-seven thousand, eight hundred ninety-nine".