4778064773 has 2 divisors, whose sum is σ = 4778064774. Its totient is φ = 4778064772.

The previous prime is 4778064719. The next prime is 4778064779. The reversal of 4778064773 is 3774608774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4069546849 + 708517924 = 63793^2 + 26618^2 .

It is a cyclic number.

It is not a de Polignac number, because 4778064773 - 2¹⁰ = 4778063749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4778064779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2389032386 + 2389032387.

It is an arithmetic number, because the mean of its divisors is an integer number (2389032387).

Almost surely, 2^4778064773 is an apocalyptic number.

It is an amenable number.

4778064773 is a deficient number, since it is larger than the sum of its proper divisors (1).

4778064773 is an equidigital number, since it uses as much as digits as its factorization.

4778064773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5531904, while the sum is 53.

The square root of 4778064773 is about 69123.5471673727. The cubic root of 4778064773 is about 1684.2918388306.

The spelling of 4778064773 in words is "four billion, seven hundred seventy-eight million, sixty-four thousand, seven hundred seventy-three".