2282491681 has 2 divisors, whose sum is σ = 2282491682. Its totient is φ = 2282491680.

The previous prime is 2282491669. The next prime is 2282491697. The reversal of 2282491681 is 1861942822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1322049600 + 960442081 = 36360^2 + 30991^2 .

It is a cyclic number.

It is not a de Polignac number, because 2282491681 - 2⁵ = 2282491649 is a prime.

It is a super-2 number, since 2×2282491681² = 10419536547668411522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2282497681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1141245840 + 1141245841.

It is an arithmetic number, because the mean of its divisors is an integer number (1141245841).

Almost surely, 2^2282491681 is an apocalyptic number.

It is an amenable number.

2282491681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2282491681 is an equidigital number, since it uses as much as digits as its factorization.

2282491681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 43.

The square root of 2282491681 is about 47775.4296788632. The cubic root of 2282491681 is about 1316.6481536111.

The spelling of 2282491681 in words is "two billion, two hundred eighty-two million, four hundred ninety-one thousand, six hundred eighty-one".