42059787017 has 2 divisors, whose sum is σ = 42059787018. Its totient is φ = 42059787016.

The previous prime is 42059786999. The next prime is 42059787043. The reversal of 42059787017 is 71078795024.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38659031161 + 3400755856 = 196619^2 + 58316^2 .

It is a cyclic number.

It is not a de Polignac number, because 42059787017 - 2²⁰ = 42058738441 is a prime.

It is not a weakly prime, because it can be changed into another prime (42059787047) 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, 21029893508 + 21029893509.

It is an arithmetic number, because the mean of its divisors is an integer number (21029893509).

Almost surely, 2^42059787017 is an apocalyptic number.

It is an amenable number.

42059787017 is a deficient number, since it is larger than the sum of its proper divisors (1).

42059787017 is an equidigital number, since it uses as much as digits as its factorization.

42059787017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 50.

The spelling of 42059787017 in words is "forty-two billion, fifty-nine million, seven hundred eighty-seven thousand, seventeen".