490965995549 has 2 divisors, whose sum is σ = 490965995550. Its totient is φ = 490965995548.

The previous prime is 490965995483. The next prime is 490965995557. The reversal of 490965995549 is 945599569094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 268977076900 + 221988918649 = 518630^2 + 471157^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490965995549 is a prime.

It is a super-2 number, since 2×490965995549² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (490965995579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245482997774 + 245482997775.

It is an arithmetic number, because the mean of its divisors is an integer number (245482997775).

Almost surely, 2^490965995549 is an apocalyptic number.

It is an amenable number.

490965995549 is a deficient number, since it is larger than the sum of its proper divisors (1).

490965995549 is an equidigital number, since it uses as much as digits as its factorization.

490965995549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 708588000, while the sum is 74.

The spelling of 490965995549 in words is "four hundred ninety billion, nine hundred sixty-five million, nine hundred ninety-five thousand, five hundred forty-nine".