2768478511 has 2 divisors, whose sum is σ = 2768478512. Its totient is φ = 2768478510.

The previous prime is 2768478481. The next prime is 2768478521. The reversal of 2768478511 is 1158748672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2768478511 - 2¹⁹ = 2767954223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2768478521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1384239255 + 1384239256.

It is an arithmetic number, because the mean of its divisors is an integer number (1384239256).

Almost surely, 2^2768478511 is an apocalyptic number.

2768478511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2768478511 is an equidigital number, since it uses as much as digits as its factorization.

2768478511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 49.

The square root of 2768478511 is about 52616.3331200493. Note that the first 3 decimals coincide. The cubic root of 2768478511 is about 1404.1506940128.

The spelling of 2768478511 in words is "two billion, seven hundred sixty-eight million, four hundred seventy-eight thousand, five hundred eleven".