8480728777 has 2 divisors, whose sum is σ = 8480728778. Its totient is φ = 8480728776.

The previous prime is 8480728741. The next prime is 8480728799. The reversal of 8480728777 is 7778270848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7976097481 + 504631296 = 89309^2 + 22464^2 .

It is a cyclic number.

It is not a de Polignac number, because 8480728777 - 2²⁷ = 8346511049 is a prime.

It is not a weakly prime, because it can be changed into another prime (8480728727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4240364388 + 4240364389.

It is an arithmetic number, because the mean of its divisors is an integer number (4240364389).

Almost surely, 2^8480728777 is an apocalyptic number.

It is an amenable number.

8480728777 is a deficient number, since it is larger than the sum of its proper divisors (1).

8480728777 is an equidigital number, since it uses as much as digits as its factorization.

8480728777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9834496, while the sum is 58.

The square root of 8480728777 is about 92090.8723870070. The cubic root of 8480728777 is about 2039.2840606533.

The spelling of 8480728777 in words is "eight billion, four hundred eighty million, seven hundred twenty-eight thousand, seven hundred seventy-seven".