490448125789 has 2 divisors, whose sum is σ = 490448125790. Its totient is φ = 490448125788.

The previous prime is 490448125763. The next prime is 490448125859. The reversal of 490448125789 is 987521844094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459907767225 + 30540358564 = 678165^2 + 174758^2 .

It is a cyclic number.

It is not a de Polignac number, because 490448125789 - 2⁵ = 490448125757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490448125709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245224062894 + 245224062895.

It is an arithmetic number, because the mean of its divisors is an integer number (245224062895).

Almost surely, 2^490448125789 is an apocalyptic number.

It is an amenable number.

490448125789 is a deficient number, since it is larger than the sum of its proper divisors (1).

490448125789 is an equidigital number, since it uses as much as digits as its factorization.

490448125789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23224320, while the sum is 61.

The spelling of 490448125789 in words is "four hundred ninety billion, four hundred forty-eight million, one hundred twenty-five thousand, seven hundred eighty-nine".