42219891239 has 2 divisors, whose sum is σ = 42219891240. Its totient is φ = 42219891238.

The previous prime is 42219891229. The next prime is 42219891253. The reversal of 42219891239 is 93219891224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42219891239 - 2⁴ = 42219891223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42219891229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21109945619 + 21109945620.

It is an arithmetic number, because the mean of its divisors is an integer number (21109945620).

Almost surely, 2^42219891239 is an apocalyptic number.

42219891239 is a deficient number, since it is larger than the sum of its proper divisors (1).

42219891239 is an equidigital number, since it uses as much as digits as its factorization.

42219891239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 50.

The spelling of 42219891239 in words is "forty-two billion, two hundred nineteen million, eight hundred ninety-one thousand, two hundred thirty-nine".