490715997449 has 2 divisors, whose sum is σ = 490715997450. Its totient is φ = 490715997448.

The previous prime is 490715997437. The next prime is 490715997479. The reversal of 490715997449 is 944799517094.

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., 397908640000 + 92807357449 = 630800^2 + 304643^2 .

It is a cyclic number.

It is not a de Polignac number, because 490715997449 - 2⁴ = 490715997433 is a prime.

It is not a weakly prime, because it can be changed into another prime (490715997479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245357998724 + 245357998725.

It is an arithmetic number, because the mean of its divisors is an integer number (245357998725).

Almost surely, 2^490715997449 is an apocalyptic number.

It is an amenable number.

490715997449 is a deficient number, since it is larger than the sum of its proper divisors (1).

490715997449 is an equidigital number, since it uses as much as digits as its factorization.

490715997449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102876480, while the sum is 68.

The spelling of 490715997449 in words is "four hundred ninety billion, seven hundred fifteen million, nine hundred ninety-seven thousand, four hundred forty-nine".