42589670449 has 2 divisors, whose sum is σ = 42589670450. Its totient is φ = 42589670448.

The previous prime is 42589670341. The next prime is 42589670521. The reversal of 42589670449 is 94407698524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40779763600 + 1809906849 = 201940^2 + 42543^2 .

It is a cyclic number.

It is not a de Polignac number, because 42589670449 - 2⁹ = 42589669937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42589670393 and 42589670402.

It is not a weakly prime, because it can be changed into another prime (42589679449) 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, 21294835224 + 21294835225.

It is an arithmetic number, because the mean of its divisors is an integer number (21294835225).

Almost surely, 2^42589670449 is an apocalyptic number.

It is an amenable number.

42589670449 is a deficient number, since it is larger than the sum of its proper divisors (1).

42589670449 is an equidigital number, since it uses as much as digits as its factorization.

42589670449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 42589670449 in words is "forty-two billion, five hundred eighty-nine million, six hundred seventy thousand, four hundred forty-nine".