442308820427 has 2 divisors, whose sum is σ = 442308820428. Its totient is φ = 442308820426.

The previous prime is 442308820363. The next prime is 442308820489. The reversal of 442308820427 is 724028803244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442308820427 - 2⁶ = 442308820363 is a prime.

It is not a weakly prime, because it can be changed into another prime (442308820627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221154410213 + 221154410214.

It is an arithmetic number, because the mean of its divisors is an integer number (221154410214).

Almost surely, 2^442308820427 is an apocalyptic number.

442308820427 is a deficient number, since it is larger than the sum of its proper divisors (1).

442308820427 is an equidigital number, since it uses as much as digits as its factorization.

442308820427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 688128, while the sum is 44.

The spelling of 442308820427 in words is "four hundred forty-two billion, three hundred eight million, eight hundred twenty thousand, four hundred twenty-seven".