490957948889 has 2 divisors, whose sum is σ = 490957948890. Its totient is φ = 490957948888.

The previous prime is 490957948739. The next prime is 490957948909. The reversal of 490957948889 is 988849759094.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490812336400 + 145612489 = 700580^2 + 12067^2 .

It is a cyclic number.

It is not a de Polignac number, because 490957948889 - 2³² = 486662981593 is a prime.

It is not a weakly prime, because it can be changed into another prime (490957918889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245478974444 + 245478974445.

It is an arithmetic number, because the mean of its divisors is an integer number (245478974445).

Almost surely, 2^490957948889 is an apocalyptic number.

It is an amenable number.

490957948889 is a deficient number, since it is larger than the sum of its proper divisors (1).

490957948889 is an equidigital number, since it uses as much as digits as its factorization.

490957948889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1881169920, while the sum is 80.

The spelling of 490957948889 in words is "four hundred ninety billion, nine hundred fifty-seven million, nine hundred forty-eight thousand, eight hundred eighty-nine".