4500778913 has 2 divisors, whose sum is σ = 4500778914. Its totient is φ = 4500778912.

The previous prime is 4500778907. The next prime is 4500778939. The reversal of 4500778913 is 3198770054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4470660769 + 30118144 = 66863^2 + 5488^2 .

It is a cyclic number.

It is not a de Polignac number, because 4500778913 - 2²⁰ = 4499730337 is a prime.

It is not a weakly prime, because it can be changed into another prime (4500778993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2250389456 + 2250389457.

It is an arithmetic number, because the mean of its divisors is an integer number (2250389457).

Almost surely, 2^4500778913 is an apocalyptic number.

It is an amenable number.

4500778913 is a deficient number, since it is larger than the sum of its proper divisors (1).

4500778913 is an equidigital number, since it uses as much as digits as its factorization.

4500778913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 4500778913 is about 67087.8447485087. The cubic root of 4500778913 is about 1651.0588750281.

The spelling of 4500778913 in words is "four billion, five hundred million, seven hundred seventy-eight thousand, nine hundred thirteen".