6538809632 has 24 divisors (see below), whose sum is σ = 12884256252. Its totient is φ = 3266617600.

The previous prime is 6538809631. The next prime is 6538809649. The reversal of 6538809632 is 2369088356.

It can be written as a sum of positive squares in 2 ways, for example, as 6114614416 + 424195216 = 78196^2 + 20596^2 .

It is not an unprimeable number, because it can be changed into a prime (6538809631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48719 + ... + 124302.

Almost surely, 2^6538809632 is an apocalyptic number.

It is an amenable number.

6538809632 is a deficient number, since it is larger than the sum of its proper divisors (6345446620).

6538809632 is a wasteful number, since it uses less digits than its factorization.

6538809632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174212 (or 174204 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The square root of 6538809632 is about 80862.9064033689. The cubic root of 6538809632 is about 1869.9625024176.

The spelling of 6538809632 in words is "six billion, five hundred thirty-eight million, eight hundred nine thousand, six hundred thirty-two".