42522434641 has 2 divisors, whose sum is σ = 42522434642. Its totient is φ = 42522434640.

The previous prime is 42522434639. The next prime is 42522434651. The reversal of 42522434641 is 14643422524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28537007041 + 13985427600 = 168929^2 + 118260^2 .

It is a cyclic number.

It is not a de Polignac number, because 42522434641 - 2¹ = 42522434639 is a prime.

Together with 42522434639, 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 42522434641.

It is not a weakly prime, because it can be changed into another prime (42522434651) 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, 21261217320 + 21261217321.

It is an arithmetic number, because the mean of its divisors is an integer number (21261217321).

Almost surely, 2^42522434641 is an apocalyptic number.

It is an amenable number.

42522434641 is a deficient number, since it is larger than the sum of its proper divisors (1).

42522434641 is an equidigital number, since it uses as much as digits as its factorization.

42522434641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 37.

The spelling of 42522434641 in words is "forty-two billion, five hundred twenty-two million, four hundred thirty-four thousand, six hundred forty-one".