42035423449 has 2 divisors, whose sum is σ = 42035423450. Its totient is φ = 42035423448.

The previous prime is 42035423383. The next prime is 42035423453. The reversal of 42035423449 is 94432453024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40605071049 + 1430352400 = 201507^2 + 37820^2 .

It is a cyclic number.

It is not a de Polignac number, because 42035423449 - 2⁹ = 42035422937 is a prime.

It is not a weakly prime, because it can be changed into another prime (42035423459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21017711724 + 21017711725.

It is an arithmetic number, because the mean of its divisors is an integer number (21017711725).

Almost surely, 2^42035423449 is an apocalyptic number.

It is an amenable number.

42035423449 is a deficient number, since it is larger than the sum of its proper divisors (1).

42035423449 is an equidigital number, since it uses as much as digits as its factorization.

42035423449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 42035423449 in words is "forty-two billion, thirty-five million, four hundred twenty-three thousand, four hundred forty-nine".