42239354671 has 2 divisors, whose sum is σ = 42239354672. Its totient is φ = 42239354670.

The previous prime is 42239354653. The next prime is 42239354701. The reversal of 42239354671 is 17645393224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42239354671 - 2²⁹ = 41702483759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42239354071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21119677335 + 21119677336.

It is an arithmetic number, because the mean of its divisors is an integer number (21119677336).

Almost surely, 2^42239354671 is an apocalyptic number.

42239354671 is a deficient number, since it is larger than the sum of its proper divisors (1).

42239354671 is an equidigital number, since it uses as much as digits as its factorization.

42239354671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 46.

The spelling of 42239354671 in words is "forty-two billion, two hundred thirty-nine million, three hundred fifty-four thousand, six hundred seventy-one".