6536836688 has 20 divisors (see below), whose sum is σ = 12695217588. Its totient is φ = 3260651520.

The previous prime is 6536836643. The next prime is 6536836699. The reversal of 6536836688 is 8866386356.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2255490064 + 4281346624 = 47492^2 + 65432^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478481 + ... + 491952.

Almost surely, 2^6536836688 is an apocalyptic number.

It is an amenable number.

6536836688 is a deficient number, since it is larger than the sum of its proper divisors (6158380900).

6536836688 is a wasteful number, since it uses less digits than its factorization.

6536836688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970862 (or 970856 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 59.

The square root of 6536836688 is about 80850.7061688394. The cubic root of 6536836688 is about 1869.7744099549.

The spelling of 6536836688 in words is "six billion, five hundred thirty-six million, eight hundred thirty-six thousand, six hundred eighty-eight".