490317851473 has 2 divisors, whose sum is σ = 490317851474. Its totient is φ = 490317851472.

The previous prime is 490317851449. The next prime is 490317851533. The reversal of 490317851473 is 374158713094.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 407723115024 + 82594736449 = 638532^2 + 287393^2 .

It is a cyclic number.

It is not a de Polignac number, because 490317851473 - 2²¹ = 490315754321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 490317851473.

It is not a weakly prime, because it can be changed into another prime (490317801473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245158925736 + 245158925737.

It is an arithmetic number, because the mean of its divisors is an integer number (245158925737).

Almost surely, 2^490317851473 is an apocalyptic number.

It is an amenable number.

490317851473 is a deficient number, since it is larger than the sum of its proper divisors (1).

490317851473 is an equidigital number, since it uses as much as digits as its factorization.

490317851473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 490317851473 in words is "four hundred ninety billion, three hundred seventeen million, eight hundred fifty-one thousand, four hundred seventy-three".