2768478481 has 2 divisors, whose sum is σ = 2768478482. Its totient is φ = 2768478480.

The previous prime is 2768478443. The next prime is 2768478511. The reversal of 2768478481 is 1848748672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2460160000 + 308318481 = 49600^2 + 17559^2 .

It is a cyclic number.

It is not a de Polignac number, because 2768478481 - 2⁹ = 2768477969 is a prime.

It is a super-2 number, since 2×2768478481² = 15328946199520134722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2768473481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1384239240 + 1384239241.

It is an arithmetic number, because the mean of its divisors is an integer number (1384239241).

Almost surely, 2^2768478481 is an apocalyptic number.

It is an amenable number.

2768478481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2768478481 is an equidigital number, since it uses as much as digits as its factorization.

2768478481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4816896, while the sum is 55.

The square root of 2768478481 is about 52616.3328349667. The cubic root of 2768478481 is about 1404.1506889409.

The spelling of 2768478481 in words is "two billion, seven hundred sixty-eight million, four hundred seventy-eight thousand, four hundred eighty-one".