2272642787 has 2 divisors, whose sum is σ = 2272642788. Its totient is φ = 2272642786.

The previous prime is 2272642733. The next prime is 2272642793. The reversal of 2272642787 is 7872462722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2272642787 - 2⁸ = 2272642531 is a prime.

It is not a weakly prime, because it can be changed into another prime (2272642187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136321393 + 1136321394.

It is an arithmetic number, because the mean of its divisors is an integer number (1136321394).

Almost surely, 2^2272642787 is an apocalyptic number.

2272642787 is a deficient number, since it is larger than the sum of its proper divisors (1).

2272642787 is an equidigital number, since it uses as much as digits as its factorization.

2272642787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1053696, while the sum is 47.

The square root of 2272642787 is about 47672.2433602615. The cubic root of 2272642787 is about 1314.7516553576.

The spelling of 2272642787 in words is "two billion, two hundred seventy-two million, six hundred forty-two thousand, seven hundred eighty-seven".