4231420777 has 2 divisors, whose sum is σ = 4231420778. Its totient is φ = 4231420776.

The previous prime is 4231420747. The next prime is 4231420793. The reversal of 4231420777 is 7770241324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4193339536 + 38081241 = 64756^2 + 6171^2 .

It is a cyclic number.

It is not a de Polignac number, because 4231420777 - 2¹¹ = 4231418729 is a prime.

It is not a weakly prime, because it can be changed into another prime (4231420747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115710388 + 2115710389.

It is an arithmetic number, because the mean of its divisors is an integer number (2115710389).

Almost surely, 2^4231420777 is an apocalyptic number.

It is an amenable number.

4231420777 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231420777 is an equidigital number, since it uses as much as digits as its factorization.

4231420777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 4231420777 is about 65049.3718417019. The cubic root of 4231420777 is about 1617.4420813659.

The spelling of 4231420777 in words is "four billion, two hundred thirty-one million, four hundred twenty thousand, seven hundred seventy-seven".