72422042636473 has 2 divisors, whose sum is σ = 72422042636474. Its totient is φ = 72422042636472.

The previous prime is 72422042636441. The next prime is 72422042636477. The reversal of 72422042636473 is 37463624022427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60064933524649 + 12357109111824 = 7750157^2 + 3515268^2 .

It is a cyclic number.

It is not a de Polignac number, because 72422042636473 - 2⁵ = 72422042636441 is a prime.

It is a super-2 number, since 2×72422042636473² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72422042636473.

It is not a weakly prime, because it can be changed into another prime (72422042636477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36211021318236 + 36211021318237.

It is an arithmetic number, because the mean of its divisors is an integer number (36211021318237).

Almost surely, 2^{72422042636473} is an apocalyptic number.

It is an amenable number.

72422042636473 is a deficient number, since it is larger than the sum of its proper divisors (1).

72422042636473 is an equidigital number, since it uses as much as digits as its factorization.

72422042636473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16257024, while the sum is 52.

The spelling of 72422042636473 in words is "seventy-two trillion, four hundred twenty-two billion, forty-two million, six hundred thirty-six thousand, four hundred seventy-three".