42322775639 has 2 divisors, whose sum is σ = 42322775640. Its totient is φ = 42322775638.

The previous prime is 42322775603. The next prime is 42322775689. The reversal of 42322775639 is 93657722324.

It is an a-pointer prime, because the next prime (42322775689) can be obtained adding 42322775639 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42322775639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42322775689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21161387819 + 21161387820.

It is an arithmetic number, because the mean of its divisors is an integer number (21161387820).

Almost surely, 2^42322775639 is an apocalyptic number.

42322775639 is a deficient number, since it is larger than the sum of its proper divisors (1).

42322775639 is an equidigital number, since it uses as much as digits as its factorization.

42322775639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 50.

The spelling of 42322775639 in words is "forty-two billion, three hundred twenty-two million, seven hundred seventy-five thousand, six hundred thirty-nine".