42459239573 has 2 divisors, whose sum is σ = 42459239574. Its totient is φ = 42459239572.

The previous prime is 42459239509. The next prime is 42459239597. The reversal of 42459239573 is 37593295424.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39441165604 + 3018073969 = 198598^2 + 54937^2 .

It is a cyclic number.

It is not a de Polignac number, because 42459239573 - 2⁶ = 42459239509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42459235573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21229619786 + 21229619787.

It is an arithmetic number, because the mean of its divisors is an integer number (21229619787).

Almost surely, 2^42459239573 is an apocalyptic number.

It is an amenable number.

42459239573 is a deficient number, since it is larger than the sum of its proper divisors (1).

42459239573 is an equidigital number, since it uses as much as digits as its factorization.

42459239573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8164800, while the sum is 53.

The spelling of 42459239573 in words is "forty-two billion, four hundred fifty-nine million, two hundred thirty-nine thousand, five hundred seventy-three".