4128769231 has 2 divisors, whose sum is σ = 4128769232. Its totient is φ = 4128769230.

The previous prime is 4128769189. The next prime is 4128769301. The reversal of 4128769231 is 1329678214.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4128769231 - 2¹⁷ = 4128638159 is a prime.

It is a super-2 number, since 2×4128769231² = 34093470725704662722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4128763231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2064384615 + 2064384616.

It is an arithmetic number, because the mean of its divisors is an integer number (2064384616).

Almost surely, 2^4128769231 is an apocalyptic number.

4128769231 is a deficient number, since it is larger than the sum of its proper divisors (1).

4128769231 is an equidigital number, since it uses as much as digits as its factorization.

4128769231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 4128769231 is about 64255.4996167643. The cubic root of 4128769231 is about 1604.2554986259.

The spelling of 4128769231 in words is "four billion, one hundred twenty-eight million, seven hundred sixty-nine thousand, two hundred thirty-one".