42244444357 has 2 divisors, whose sum is σ = 42244444358. Its totient is φ = 42244444356.

The previous prime is 42244444339. The next prime is 42244444469. The reversal of 42244444357 is 75344444224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39439576836 + 2804867521 = 198594^2 + 52961^2 .

It is a cyclic number.

It is not a de Polignac number, because 42244444357 - 2³⁵ = 7884705989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42244444327) 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, 21122222178 + 21122222179.

It is an arithmetic number, because the mean of its divisors is an integer number (21122222179).

Almost surely, 2^42244444357 is an apocalyptic number.

It is an amenable number.

42244444357 is a deficient number, since it is larger than the sum of its proper divisors (1).

42244444357 is an equidigital number, since it uses as much as digits as its factorization.

42244444357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1720320, while the sum is 43.

The spelling of 42244444357 in words is "forty-two billion, two hundred forty-four million, four hundred forty-four thousand, three hundred fifty-seven".