6868491528 has 16 divisors (see below), whose sum is σ = 17171228880. Its totient is φ = 2289497168.

The previous prime is 6868491491. The next prime is 6868491529. The reversal of 6868491528 is 8251948686.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (6868491529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143093550 + ... + 143093597.

It is an arithmetic number, because the mean of its divisors is an integer number (1073201805).

Almost surely, 2^6868491528 is an apocalyptic number.

It is an amenable number.

6868491528 is an abundant number, since it is smaller than the sum of its proper divisors (10302737352).

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

6868491528 is a wasteful number, since it uses less digits than its factorization.

6868491528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286187156 (or 286187152 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 57.

The square root of 6868491528 is about 82876.3629028205. The cubic root of 6868491528 is about 1900.8760067606.

The spelling of 6868491528 in words is "six billion, eight hundred sixty-eight million, four hundred ninety-one thousand, five hundred twenty-eight".