6538636696 has 32 divisors (see below), whose sum is σ = 13545519840. Its totient is φ = 2943221248.

The previous prime is 6538636693. The next prime is 6538636711. The reversal of 6538636696 is 6966368356.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6538636696.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6538636691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042051 + ... + 1048306.

It is an arithmetic number, because the mean of its divisors is an integer number (423297495).

Almost surely, 2^6538636696 is an apocalyptic number.

It is an amenable number.

6538636696 is an abundant number, since it is smaller than the sum of its proper divisors (7006883144).

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

6538636696 is a wasteful number, since it uses less digits than its factorization.

6538636696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090403 (or 2090399 counting only the distinct ones).

The product of its digits is 25194240, while the sum is 58.

The square root of 6538636696 is about 80861.8370802939. The cubic root of 6538636696 is about 1869.9460169151.

The spelling of 6538636696 in words is "six billion, five hundred thirty-eight million, six hundred thirty-six thousand, six hundred ninety-six".