3127273728 has 144 divisors (see below), whose sum is σ = 8572339776. Its totient is φ = 1011548160.

The previous prime is 3127273717. The next prime is 3127273741. The reversal of 3127273728 is 8273727213.

It is a self number, because there is not a number n which added to its sum of digits gives 3127273728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9279576 + ... + 9279912.

Almost surely, 2^3127273728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3127273728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4286169888).

3127273728 is an abundant number, since it is smaller than the sum of its proper divisors (5445066048).

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

3127273728 is a wasteful number, since it uses less digits than its factorization.

3127273728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 666 counting only the distinct ones).

The product of its digits is 197568, while the sum is 42.

The square root of 3127273728 is about 55922.0325810856. The cubic root of 3127273728 is about 1462.3633655975.

The spelling of 3127273728 in words is "three billion, one hundred twenty-seven million, two hundred seventy-three thousand, seven hundred twenty-eight".