6534188481 has 16 divisors (see below), whose sum is σ = 8789760000. Its totient is φ = 4317441408.

The previous prime is 6534188443. The next prime is 6534188503. The reversal of 6534188481 is 1848814356.

It is not a de Polignac number, because 6534188481 - 2¹¹ = 6534186433 is a prime.

It is a super-2 number, since 2×6534188481² = 85391238210466174722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6534188481.

It is not an unprimeable number, because it can be changed into a prime (6534188411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391495 + ... + 407843.

It is an arithmetic number, because the mean of its divisors is an integer number (549360000).

Almost surely, 2^6534188481 is an apocalyptic number.

It is an amenable number.

6534188481 is a deficient number, since it is larger than the sum of its proper divisors (2255571519).

6534188481 is a wasteful number, since it uses less digits than its factorization.

6534188481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17528.

The product of its digits is 737280, while the sum is 48.

The square root of 6534188481 is about 80834.3273677712. The cubic root of 6534188481 is about 1869.5218811592.

The spelling of 6534188481 in words is "six billion, five hundred thirty-four million, one hundred eighty-eight thousand, four hundred eighty-one".