6538683980835 has 24 divisors (see below), whose sum is σ = 11335148199024. Its totient is φ = 3486858338880.

The previous prime is 6538683980833. The next prime is 6538683980839. The reversal of 6538683980835 is 5380893868356.

6538683980835 is a `hidden beast` number, since 6 + 5 + 386 + 83 + 98 + 0 + 83 + 5 = 666.

It is not a de Polignac number, because 6538683980835 - 2¹ = 6538683980833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6538683980833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8801221 + ... + 9515190.

It is an arithmetic number, because the mean of its divisors is an integer number (472297841626).

Almost surely, 2^{6538683980835} is an apocalyptic number.

6538683980835 is a deficient number, since it is larger than the sum of its proper divisors (4796464218189).

6538683980835 is a wasteful number, since it uses less digits than its factorization.

6538683980835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18324355 (or 18324352 counting only the distinct ones).

The product of its (nonzero) digits is 895795200, while the sum is 72.

The spelling of 6538683980835 in words is "six trillion, five hundred thirty-eight billion, six hundred eighty-three million, nine hundred eighty thousand, eight hundred thirty-five".