42035657771 has 2 divisors, whose sum is σ = 42035657772. Its totient is φ = 42035657770.

The previous prime is 42035657749. The next prime is 42035657819. The reversal of 42035657771 is 17775653024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42035657771 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42035657071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21017828885 + 21017828886.

It is an arithmetic number, because the mean of its divisors is an integer number (21017828886).

Almost surely, 2^42035657771 is an apocalyptic number.

42035657771 is a deficient number, since it is larger than the sum of its proper divisors (1).

42035657771 is an equidigital number, since it uses as much as digits as its factorization.

42035657771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1234800, while the sum is 47.

The spelling of 42035657771 in words is "forty-two billion, thirty-five million, six hundred fifty-seven thousand, seven hundred seventy-one".