6490539072 has 280 divisors, whose sum is σ = 20818473984. Its totient is φ = 1991651328.

The previous prime is 6490539059. The next prime is 6490539101. The reversal of 6490539072 is 2709350946.

It is a happy number.

6490539072 is a `hidden beast` number, since 6 + 49 + 0 + 539 + 0 + 72 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4141233 + ... + 4142799.

Almost surely, 2^6490539072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6490539072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10409236992).

6490539072 is an abundant number, since it is smaller than the sum of its proper divisors (14327934912).

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

6490539072 is a wasteful number, since it uses less digits than its factorization.

6490539072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 6490539072 is about 80563.8819322902. The cubic root of 6490539072 is about 1865.3496767111.

The spelling of 6490539072 in words is "six billion, four hundred ninety million, five hundred thirty-nine thousand, seventy-two".