42363053549 has 2 divisors, whose sum is σ = 42363053550. Its totient is φ = 42363053548.

The previous prime is 42363053519. The next prime is 42363053587. The reversal of 42363053549 is 94535036324.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26685509449 + 15677544100 = 163357^2 + 125210^2 .

It is a cyclic number.

It is not a de Polignac number, because 42363053549 - 2²⁰ = 42362004973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42363053519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21181526774 + 21181526775.

It is an arithmetic number, because the mean of its divisors is an integer number (21181526775).

Almost surely, 2^42363053549 is an apocalyptic number.

It is an amenable number.

42363053549 is a deficient number, since it is larger than the sum of its proper divisors (1).

42363053549 is an equidigital number, since it uses as much as digits as its factorization.

42363053549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 42363053549 in words is "forty-two billion, three hundred sixty-three million, fifty-three thousand, five hundred forty-nine".