42530399999 has 2 divisors, whose sum is σ = 42530400000. Its totient is φ = 42530399998.

The previous prime is 42530399939. The next prime is 42530400001. The reversal of 42530399999 is 99999303524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42530399999 - 2²⁴ = 42513622783 is a prime.

Together with 42530400001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42530399939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21265199999 + 21265200000.

It is an arithmetic number, because the mean of its divisors is an integer number (21265200000).

Almost surely, 2^42530399999 is an apocalyptic number.

42530399999 is a deficient number, since it is larger than the sum of its proper divisors (1).

42530399999 is an equidigital number, since it uses as much as digits as its factorization.

42530399999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21257640, while the sum is 62.

The spelling of 42530399999 in words is "forty-two billion, five hundred thirty million, three hundred ninety-nine thousand, nine hundred ninety-nine".