12422540477 has 2 divisors, whose sum is σ = 12422540478. Its totient is φ = 12422540476.

The previous prime is 12422540387. The next prime is 12422540491. The reversal of 12422540477 is 77404522421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7146842521 + 5275697956 = 84539^2 + 72634^2 .

It is a cyclic number.

It is not a de Polignac number, because 12422540477 - 2¹⁶ = 12422474941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12422540477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12422548477) 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, 6211270238 + 6211270239.

It is an arithmetic number, because the mean of its divisors is an integer number (6211270239).

Almost surely, 2^12422540477 is an apocalyptic number.

It is an amenable number.

12422540477 is a deficient number, since it is larger than the sum of its proper divisors (1).

12422540477 is an equidigital number, since it uses as much as digits as its factorization.

12422540477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125440, while the sum is 38.

The spelling of 12422540477 in words is "twelve billion, four hundred twenty-two million, five hundred forty thousand, four hundred seventy-seven".