4128623693 has 2 divisors, whose sum is σ = 4128623694. Its totient is φ = 4128623692.

The previous prime is 4128623633. The next prime is 4128623701. The reversal of 4128623693 is 3963268214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4096384009 + 32239684 = 64003^2 + 5678^2 .

It is a cyclic number.

It is not a de Polignac number, because 4128623693 - 2⁸ = 4128623437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4128623633) 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, 2064311846 + 2064311847.

It is an arithmetic number, because the mean of its divisors is an integer number (2064311847).

Almost surely, 2^4128623693 is an apocalyptic number.

It is an amenable number.

4128623693 is a deficient number, since it is larger than the sum of its proper divisors (1).

4128623693 is an equidigital number, since it uses as much as digits as its factorization.

4128623693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 44.

The square root of 4128623693 is about 64254.3671122827. The cubic root of 4128623693 is about 1604.2366485468.

The spelling of 4128623693 in words is "four billion, one hundred twenty-eight million, six hundred twenty-three thousand, six hundred ninety-three".