4553764781 has 2 divisors, whose sum is σ = 4553764782. Its totient is φ = 4553764780.

The previous prime is 4553764777. The next prime is 4553764819. The reversal of 4553764781 is 1874673554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4501202281 + 52562500 = 67091^2 + 7250^2 .

It is a cyclic number.

It is not a de Polignac number, because 4553764781 - 2² = 4553764777 is a prime.

It is a super-2 number, since 2×4553764781² = 41473547361351955922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4553764711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2276882390 + 2276882391.

It is an arithmetic number, because the mean of its divisors is an integer number (2276882391).

Almost surely, 2^4553764781 is an apocalyptic number.

It is an amenable number.

4553764781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4553764781 is an equidigital number, since it uses as much as digits as its factorization.

4553764781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2822400, while the sum is 50.

The square root of 4553764781 is about 67481.5884593716. The cubic root of 4553764781 is about 1657.5126998125.

The spelling of 4553764781 in words is "four billion, five hundred fifty-three million, seven hundred sixty-four thousand, seven hundred eighty-one".