2776317128 has 36 divisors (see below), whose sum is σ = 5640763635. Its totient is φ = 1280482944.

The previous prime is 2776317109. The next prime is 2776317161. The reversal of 2776317128 is 8217136772.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 1301910724 + 1474406404 = 36082^2 + 38398^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=37258.

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 8 ways as a sum of consecutive naturals, for example, 1936700 + ... + 1938132.

Almost surely, 2^2776317128 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 2776317128

2776317128 is an abundant number, since it is smaller than the sum of its proper divisors (2864446507).

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

2776317128 is an equidigital number, since it uses as much as digits as its factorization.

2776317128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2898 (or 1448 counting only the distinct ones).

The product of its digits is 197568, while the sum is 44.

The square root of 2776317128 is about 52690.7689068968. The cubic root of 2776317128 is about 1405.4746736895.

The spelling of 2776317128 in words is "two billion, seven hundred seventy-six million, three hundred seventeen thousand, one hundred twenty-eight".