42021405004063 has 2 divisors, whose sum is σ = 42021405004064. Its totient is φ = 42021405004062.

The previous prime is 42021405004057. The next prime is 42021405004087. The reversal of 42021405004063 is 36040050412024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42021405004063 - 2²¹ = 42021402906911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42021405004013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21010702502031 + 21010702502032.

It is an arithmetic number, because the mean of its divisors is an integer number (21010702502032).

Almost surely, 2^{42021405004063} is an apocalyptic number.

42021405004063 is a deficient number, since it is larger than the sum of its proper divisors (1).

42021405004063 is an equidigital number, since it uses as much as digits as its factorization.

42021405004063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 42021405004063 its reverse (36040050412024), we get a palindrome (78061455416087).

The spelling of 42021405004063 in words is "forty-two trillion, twenty-one billion, four hundred five million, four thousand, sixty-three".