427422220237 has 2 divisors, whose sum is σ = 427422220238. Its totient is φ = 427422220236.

The previous prime is 427422220187. The next prime is 427422220339. The reversal of 427422220237 is 732022224724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410497771401 + 16924448836 = 640701^2 + 130094^2 .

It is a cyclic number.

It is not a de Polignac number, because 427422220237 - 2³¹ = 425274736589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 427422220196 and 427422220205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427422220037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213711110118 + 213711110119.

It is an arithmetic number, because the mean of its divisors is an integer number (213711110119).

Almost surely, 2^427422220237 is an apocalyptic number.

It is an amenable number.

427422220237 is a deficient number, since it is larger than the sum of its proper divisors (1).

427422220237 is an equidigital number, since it uses as much as digits as its factorization.

427422220237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150528, while the sum is 37.

The spelling of 427422220237 in words is "four hundred twenty-seven billion, four hundred twenty-two million, two hundred twenty thousand, two hundred thirty-seven".