42383536081 has 2 divisors, whose sum is σ = 42383536082. Its totient is φ = 42383536080.

The previous prime is 42383536067. The next prime is 42383536141. The reversal of 42383536081 is 18063538324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40304176081 + 2079360000 = 200759^2 + 45600^2 .

It is a cyclic number.

It is not a de Polignac number, because 42383536081 - 2¹¹ = 42383534033 is a prime.

It is a super-2 number, since 2×42383536081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42383536031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21191768040 + 21191768041.

It is an arithmetic number, because the mean of its divisors is an integer number (21191768041).

Almost surely, 2^42383536081 is an apocalyptic number.

It is an amenable number.

42383536081 is a deficient number, since it is larger than the sum of its proper divisors (1).

42383536081 is an equidigital number, since it uses as much as digits as its factorization.

42383536081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 42383536081 in words is "forty-two billion, three hundred eighty-three million, five hundred thirty-six thousand, eighty-one".