6728556144 has 40 divisors (see below), whose sum is σ = 17514807552. Its totient is φ = 2225728960.

The previous prime is 6728556113. The next prime is 6728556151. The reversal of 6728556144 is 4416558276.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 6728556093 and 6728556102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528744 + ... + 541319.

Almost surely, 2^6728556144 is an apocalyptic number.

It is an amenable number.

6728556144 is an abundant number, since it is smaller than the sum of its proper divisors (10786251408).

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

6728556144 is a wasteful number, since it uses less digits than its factorization.

6728556144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070205 (or 1070199 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

The square root of 6728556144 is about 82027.7766613237. The cubic root of 6728556144 is about 1887.8781506514.

The spelling of 6728556144 in words is "six billion, seven hundred twenty-eight million, five hundred fifty-six thousand, one hundred forty-four".