42227361277 has 2 divisors, whose sum is σ = 42227361278. Its totient is φ = 42227361276.

The previous prime is 42227361229. The next prime is 42227361283. The reversal of 42227361277 is 77216372224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31760229796 + 10467131481 = 178214^2 + 102309^2 .

It is a cyclic number.

It is not a de Polignac number, because 42227361277 - 2⁷ = 42227361149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42227361217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21113680638 + 21113680639.

It is an arithmetic number, because the mean of its divisors is an integer number (21113680639).

Almost surely, 2^42227361277 is an apocalyptic number.

It is an amenable number.

42227361277 is a deficient number, since it is larger than the sum of its proper divisors (1).

42227361277 is an equidigital number, since it uses as much as digits as its factorization.

42227361277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 43.

The spelling of 42227361277 in words is "forty-two billion, two hundred twenty-seven million, three hundred sixty-one thousand, two hundred seventy-seven".