42266727197 has 2 divisors, whose sum is σ = 42266727198. Its totient is φ = 42266727196.

The previous prime is 42266727131. The next prime is 42266727221. The reversal of 42266727197 is 79172766224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29400589156 + 12866138041 = 171466^2 + 113429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42266727197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42266727127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21133363598 + 21133363599.

It is an arithmetic number, because the mean of its divisors is an integer number (21133363599).

Almost surely, 2^42266727197 is an apocalyptic number.

It is an amenable number.

42266727197 is a deficient number, since it is larger than the sum of its proper divisors (1).

42266727197 is an equidigital number, since it uses as much as digits as its factorization.

42266727197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3556224, while the sum is 53.

The spelling of 42266727197 in words is "forty-two billion, two hundred sixty-six million, seven hundred twenty-seven thousand, one hundred ninety-seven".