6369490980 has 144 divisors (see below), whose sum is σ = 21163025520. Its totient is φ = 1543471104.

The previous prime is 6369490979. The next prime is 6369490987. The reversal of 6369490980 is 890949636.

It is a happy number.

6369490980 is a `hidden beast` number, since 6 + 3 + 69 + 490 + 98 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 209438784 + 6160052196 = 14472^2 + 78486^2 .

It is not an unprimeable number, because it can be changed into a prime (6369490987) 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 in 47 ways as a sum of consecutive naturals, for example, 52852 + ... + 124628.

It is an arithmetic number, because the mean of its divisors is an integer number (146965455).

Almost surely, 2^6369490980 is an apocalyptic number.

6369490980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6369490980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10581512760).

6369490980 is an abundant number, since it is smaller than the sum of its proper divisors (14793534540).

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

6369490980 is a wasteful number, since it uses less digits than its factorization.

6369490980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71838 (or 71833 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The square root of 6369490980 is about 79809.0908355684. The cubic root of 6369490980 is about 1853.6806179280.

The spelling of 6369490980 in words is "six billion, three hundred sixty-nine million, four hundred ninety thousand, nine hundred eighty".