2273842861 has 2 divisors, whose sum is σ = 2273842862. Its totient is φ = 2273842860.

The previous prime is 2273842811. The next prime is 2273842873. The reversal of 2273842861 is 1682483722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1372702500 + 901140361 = 37050^2 + 30019^2 .

It is a cyclic number.

It is not a de Polignac number, because 2273842861 - 2⁹ = 2273842349 is a prime.

It is a super-2 number, since 2×2273842861² = 10340722713041330642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2273842811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136921430 + 1136921431.

It is an arithmetic number, because the mean of its divisors is an integer number (1136921431).

Almost surely, 2^2273842861 is an apocalyptic number.

It is an amenable number.

2273842861 is a deficient number, since it is larger than the sum of its proper divisors (1).

2273842861 is an equidigital number, since it uses as much as digits as its factorization.

2273842861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 43.

The square root of 2273842861 is about 47684.8284153356. The cubic root of 2273842861 is about 1314.9830337992.

The spelling of 2273842861 in words is "two billion, two hundred seventy-three million, eight hundred forty-two thousand, eight hundred sixty-one".