4788428681 has 2 divisors, whose sum is σ = 4788428682. Its totient is φ = 4788428680.

The previous prime is 4788428677. The next prime is 4788428693. The reversal of 4788428681 is 1868248874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4517990656 + 270438025 = 67216^2 + 16445^2 .

It is a cyclic number.

It is not a de Polignac number, because 4788428681 - 2² = 4788428677 is a prime.

It is a super-2 number, since 2×4788428681² = 45858098466046799522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4788424681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2394214340 + 2394214341.

It is an arithmetic number, because the mean of its divisors is an integer number (2394214341).

Almost surely, 2^4788428681 is an apocalyptic number.

It is an amenable number.

4788428681 is a deficient number, since it is larger than the sum of its proper divisors (1).

4788428681 is an equidigital number, since it uses as much as digits as its factorization.

4788428681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5505024, while the sum is 56.

The square root of 4788428681 is about 69198.4731117674. The cubic root of 4788428681 is about 1685.5087359605.

The spelling of 4788428681 in words is "four billion, seven hundred eighty-eight million, four hundred twenty-eight thousand, six hundred eighty-one".