6538528894 has 8 divisors (see below), whose sum is σ = 9857579688. Its totient is φ = 3252669000.

The previous prime is 6538528853. The next prime is 6538528901. The reversal of 6538528894 is 4988258356.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 8297232 + ... + 8298019.

It is an arithmetic number, because the mean of its divisors is an integer number (1232197461).

Almost surely, 2^6538528894 is an apocalyptic number.

6538528894 is a deficient number, since it is larger than the sum of its proper divisors (3319050794).

6538528894 is a wasteful number, since it uses less digits than its factorization.

6538528894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16595450.

The product of its digits is 16588800, while the sum is 58.

The square root of 6538528894 is about 80861.1704961040. The cubic root of 6538528894 is about 1869.9357403066.

The spelling of 6538528894 in words is "six billion, five hundred thirty-eight million, five hundred twenty-eight thousand, eight hundred ninety-four".