6490816290 has 192 divisors, whose sum is σ = 20359123200. Its totient is φ = 1401587712.

The previous prime is 6490816273. The next prime is 6490816357. The reversal of 6490816290 is 926180946.

It is a happy number.

It is a super-2 number, since 2×6490816290² = 84261392221058728200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 in 95 ways as a sum of consecutive naturals, for example, 6810454 + ... + 6811406.

It is an arithmetic number, because the mean of its divisors is an integer number (106037100).

Almost surely, 2^6490816290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6490816290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10179561600).

6490816290 is an abundant number, since it is smaller than the sum of its proper divisors (13868306910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6490816290 is a wasteful number, since it uses less digits than its factorization.

6490816290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 6490816290 is about 80565.6023995352. The cubic root of 6490816290 is about 1865.3762333725.

The spelling of 6490816290 in words is "six billion, four hundred ninety million, eight hundred sixteen thousand, two hundred ninety".