4780426121 has 2 divisors, whose sum is σ = 4780426122. Its totient is φ = 4780426120.

The previous prime is 4780426111. The next prime is 4780426187. The reversal of 4780426121 is 1216240874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2998657600 + 1781768521 = 54760^2 + 42211^2 .

It is a cyclic number.

It is not a de Polignac number, because 4780426121 - 2³⁰ = 3706684297 is a prime.

It is not a weakly prime, because it can be changed into another prime (4780426111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2390213060 + 2390213061.

It is an arithmetic number, because the mean of its divisors is an integer number (2390213061).

Almost surely, 2^4780426121 is an apocalyptic number.

It is an amenable number.

4780426121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4780426121 is an equidigital number, since it uses as much as digits as its factorization.

4780426121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 4780426121 is about 69140.6256914124. The cubic root of 4780426121 is about 1684.5692554800.

Adding to 4780426121 its reverse (1216240874), we get a palindrome (5996666995).

The spelling of 4780426121 in words is "four billion, seven hundred eighty million, four hundred twenty-six thousand, one hundred twenty-one".