42344244361 has 2 divisors, whose sum is σ = 42344244362. Its totient is φ = 42344244360.

The previous prime is 42344244359. The next prime is 42344244389. The reversal of 42344244361 is 16344244324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42082419600 + 261824761 = 205140^2 + 16181^2 .

It is a cyclic number.

It is not a de Polignac number, because 42344244361 - 2¹ = 42344244359 is a prime.

Together with 42344244359, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42344244361.

It is not a weakly prime, because it can be changed into another prime (42344244301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21172122180 + 21172122181.

It is an arithmetic number, because the mean of its divisors is an integer number (21172122181).

Almost surely, 2^42344244361 is an apocalyptic number.

It is an amenable number.

42344244361 is a deficient number, since it is larger than the sum of its proper divisors (1).

42344244361 is an equidigital number, since it uses as much as digits as its factorization.

42344244361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 221184, while the sum is 37.

Subtracting from 42344244361 its sum of digits (37), we obtain a palindrome (42344244324).

Adding to 42344244361 its reverse (16344244324), we get a palindrome (58688488685).

The spelling of 42344244361 in words is "forty-two billion, three hundred forty-four million, two hundred forty-four thousand, three hundred sixty-one".