42722860289 has 2 divisors, whose sum is σ = 42722860290. Its totient is φ = 42722860288.

The previous prime is 42722860241. The next prime is 42722860307. The reversal of 42722860289 is 98206822724.

It is a happy number.

42722860289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41932800625 + 790059664 = 204775^2 + 28108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42722860289 is a prime.

It is not a weakly prime, because it can be changed into another prime (42722863289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21361430144 + 21361430145.

It is an arithmetic number, because the mean of its divisors is an integer number (21361430145).

Almost surely, 2^42722860289 is an apocalyptic number.

It is an amenable number.

42722860289 is a deficient number, since it is larger than the sum of its proper divisors (1).

42722860289 is an equidigital number, since it uses as much as digits as its factorization.

42722860289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 42722860289 in words is "forty-two billion, seven hundred twenty-two million, eight hundred sixty thousand, two hundred eighty-nine".