6494611456 has 72 divisors (see below), whose sum is σ = 13796128710. Its totient is φ = 3056009216.

The previous prime is 6494611447. The next prime is 6494611457. The reversal of 6494611456 is 6541164946.

It can be written as a sum of positive squares in 3 ways, for example, as 6466733056 + 27878400 = 80416^2 + 5280^2 .

It is not an unprimeable number, because it can be changed into a prime (6494611457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 586386 + ... + 597358.

Almost surely, 2^6494611456 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 6494611456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6898064355).

6494611456 is an abundant number, since it is smaller than the sum of its proper divisors (7301517254).

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

6494611456 is a wasteful number, since it uses less digits than its factorization.

6494611456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11029 (or 10992 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 6494611456 is about 80589.1522228643. The cubic root of 6494611456 is about 1865.7397229973.

The spelling of 6494611456 in words is "six billion, four hundred ninety-four million, six hundred eleven thousand, four hundred fifty-six".