8276776728 has 32 divisors (see below), whose sum is σ = 22573028160. Its totient is φ = 2508114080.

The previous prime is 8276776693. The next prime is 8276776777.

It is a happy number.

8276776728 is nontrivially palindromic in base 10.

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, 15675450 + ... + 15675977.

It is an arithmetic number, because the mean of its divisors is an integer number (705407130).

Almost surely, 2^8276776728 is an apocalyptic number.

8276776728 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

8276776728 is an abundant number, since it is smaller than the sum of its proper divisors (14296251432).

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

8276776728 is a wasteful number, since it uses less digits than its factorization.

8276776728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31351447 (or 31351443 counting only the distinct ones).

The product of its digits is 22127616, while the sum is 60.

The square root of 8276776728 is about 90976.7922494523. The cubic root of 8276776728 is about 2022.8037340096.

The spelling of 8276776728 in words is "eight billion, two hundred seventy-six million, seven hundred seventy-six thousand, seven hundred twenty-eight".