42365612489 has 2 divisors, whose sum is σ = 42365612490. Its totient is φ = 42365612488.

The previous prime is 42365612483. The next prime is 42365612521. The reversal of 42365612489 is 98421656324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37989128464 + 4376484025 = 194908^2 + 66155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42365612489 is a prime.

It is a super-2 number, since 2×42365612489² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42365612483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21182806244 + 21182806245.

It is an arithmetic number, because the mean of its divisors is an integer number (21182806245).

Almost surely, 2^42365612489 is an apocalyptic number.

It is an amenable number.

42365612489 is a deficient number, since it is larger than the sum of its proper divisors (1).

42365612489 is an equidigital number, since it uses as much as digits as its factorization.

42365612489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 50.

The spelling of 42365612489 in words is "forty-two billion, three hundred sixty-five million, six hundred twelve thousand, four hundred eighty-nine".