6493896648 has 36 divisors (see below), whose sum is σ = 17589488865. Its totient is φ = 2164404288.

The previous prime is 6493896637. The next prime is 6493896649. The reversal of 6493896648 is 8466983946.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

6493896648 is a `hidden beast` number, since 6 + 493 + 89 + 6 + 64 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4618833444 + 1875063204 = 67962^2 + 43302^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=56982.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (6493896649) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 679036 + ... + 688532.

Almost surely, 2^6493896648 is an apocalyptic number.

It is an amenable number.

6493896648 is an abundant number, since it is smaller than the sum of its proper divisors (11095592217).

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

6493896648 is an frugal number, since it uses more digits than its factorization.

6493896648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19006 (or 9502 counting only the distinct ones).

The product of its digits is 53747712, while the sum is 63.

The square root of 6493896648 is about 80584.7172111437. The cubic root of 6493896648 is about 1865.6712716552.

The spelling of 6493896648 in words is "six billion, four hundred ninety-three million, eight hundred ninety-six thousand, six hundred forty-eight".