6488490919 has 2 divisors, whose sum is σ = 6488490920. Its totient is φ = 6488490918.

The previous prime is 6488490917. The next prime is 6488490979. The reversal of 6488490919 is 9190948846.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6488490919 - 2¹ = 6488490917 is a prime.

It is a super-2 number, since 2×6488490919² = 84201028811890929122, which contains 22 as substring.

Together with 6488490917, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6488490917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3244245459 + 3244245460.

It is an arithmetic number, because the mean of its divisors is an integer number (3244245460).

Almost surely, 2^6488490919 is an apocalyptic number.

6488490919 is a deficient number, since it is larger than the sum of its proper divisors (1).

6488490919 is an equidigital number, since it uses as much as digits as its factorization.

6488490919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The square root of 6488490919 is about 80551.1695694110. The cubic root of 6488490919 is about 1865.1534462988.

The spelling of 6488490919 in words is "six billion, four hundred eighty-eight million, four hundred ninety thousand, nine hundred nineteen".