42417627149 has 2 divisors, whose sum is σ = 42417627150. Its totient is φ = 42417627148.

The previous prime is 42417627127. The next prime is 42417627191. The reversal of 42417627149 is 94172671424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24526692100 + 17890935049 = 156610^2 + 133757^2 .

It is a cyclic number.

It is not a de Polignac number, because 42417627149 - 2²⁰ = 42416578573 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42417647149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21208813574 + 21208813575.

It is an arithmetic number, because the mean of its divisors is an integer number (21208813575).

Almost surely, 2^42417627149 is an apocalyptic number.

It is an amenable number.

42417627149 is a deficient number, since it is larger than the sum of its proper divisors (1).

42417627149 is an equidigital number, since it uses as much as digits as its factorization.

42417627149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 47.

The spelling of 42417627149 in words is "forty-two billion, four hundred seventeen million, six hundred twenty-seven thousand, one hundred forty-nine".