6541178428 has 12 divisors (see below), whose sum is σ = 11497491432. Its totient is φ = 3256180880.

The previous prime is 6541178401. The next prime is 6541178437. The reversal of 6541178428 is 8248711456.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3601063 + ... + 3602878.

It is an arithmetic number, because the mean of its divisors is an integer number (958124286).

Almost surely, 2^6541178428 is an apocalyptic number.

It is an amenable number.

6541178428 is a deficient number, since it is larger than the sum of its proper divisors (4956313004).

6541178428 is a wasteful number, since it uses less digits than its factorization.

6541178428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7204172 (or 7204170 counting only the distinct ones).

The product of its digits is 430080, while the sum is 46.

The square root of 6541178428 is about 80877.5520648344. The cubic root of 6541178428 is about 1870.1882838242.

The spelling of 6541178428 in words is "six billion, five hundred forty-one million, one hundred seventy-eight thousand, four hundred twenty-eight".