4227768551 has 2 divisors, whose sum is σ = 4227768552. Its totient is φ = 4227768550.

The previous prime is 4227768547. The next prime is 4227768563. The reversal of 4227768551 is 1558677224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4227768551 - 2² = 4227768547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4227768496 and 4227768505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4227762551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2113884275 + 2113884276.

It is an arithmetic number, because the mean of its divisors is an integer number (2113884276).

Almost surely, 2^4227768551 is an apocalyptic number.

4227768551 is a deficient number, since it is larger than the sum of its proper divisors (1).

4227768551 is an equidigital number, since it uses as much as digits as its factorization.

4227768551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 940800, while the sum is 47.

The square root of 4227768551 is about 65021.2930585051. The cubic root of 4227768551 is about 1616.9765982804.

The spelling of 4227768551 in words is "four billion, two hundred twenty-seven million, seven hundred sixty-eight thousand, five hundred fifty-one".