4781134777 has 2 divisors, whose sum is σ = 4781134778. Its totient is φ = 4781134776.

The previous prime is 4781134769. The next prime is 4781134789. The reversal of 4781134777 is 7774311874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4522697001 + 258437776 = 67251^2 + 16076^2 .

It is a cyclic number.

It is not a de Polignac number, because 4781134777 - 2³ = 4781134769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4781134777.

It is not a weakly prime, because it can be changed into another prime (4781134577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2390567388 + 2390567389.

It is an arithmetic number, because the mean of its divisors is an integer number (2390567389).

Almost surely, 2^4781134777 is an apocalyptic number.

It is an amenable number.

4781134777 is a deficient number, since it is larger than the sum of its proper divisors (1).

4781134777 is an equidigital number, since it uses as much as digits as its factorization.

4781134777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 921984, while the sum is 49.

The square root of 4781134777 is about 69145.7502454055. The cubic root of 4781134777 is about 1684.6524922108.

The spelling of 4781134777 in words is "four billion, seven hundred eighty-one million, one hundred thirty-four thousand, seven hundred seventy-seven".