42544245199 has 2 divisors, whose sum is σ = 42544245200. Its totient is φ = 42544245198.

The previous prime is 42544245179. The next prime is 42544245281. The reversal of 42544245199 is 99154244524.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42544245199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42544245109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21272122599 + 21272122600.

It is an arithmetic number, because the mean of its divisors is an integer number (21272122600).

Almost surely, 2^42544245199 is an apocalyptic number.

42544245199 is a deficient number, since it is larger than the sum of its proper divisors (1).

42544245199 is an equidigital number, since it uses as much as digits as its factorization.

42544245199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 49.

The spelling of 42544245199 in words is "forty-two billion, five hundred forty-four million, two hundred forty-five thousand, one hundred ninety-nine".