227621712427 has 2 divisors, whose sum is σ = 227621712428. Its totient is φ = 227621712426.

The previous prime is 227621712389. The next prime is 227621712469. The reversal of 227621712427 is 724217126722.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227621712427 is a prime.

It is not a weakly prime, because it can be changed into another prime (227621712727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113810856213 + 113810856214.

It is an arithmetic number, because the mean of its divisors is an integer number (113810856214).

Almost surely, 2^227621712427 is an apocalyptic number.

227621712427 is a deficient number, since it is larger than the sum of its proper divisors (1).

227621712427 is an equidigital number, since it uses as much as digits as its factorization.

227621712427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 263424, while the sum is 43.

The spelling of 227621712427 in words is "two hundred twenty-seven billion, six hundred twenty-one million, seven hundred twelve thousand, four hundred twenty-seven".