2128469929 has 2 divisors, whose sum is σ = 2128469930. Its totient is φ = 2128469928.

The previous prime is 2128469911. The next prime is 2128469953. The reversal of 2128469929 is 9299648212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1306099600 + 822370329 = 36140^2 + 28677^2 .

It is a cyclic number.

It is not a de Polignac number, because 2128469929 - 2⁵ = 2128469897 is a prime.

It is not a weakly prime, because it can be changed into another prime (2128469969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064234964 + 1064234965.

It is an arithmetic number, because the mean of its divisors is an integer number (1064234965).

Almost surely, 2^2128469929 is an apocalyptic number.

It is an amenable number.

2128469929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128469929 is an equidigital number, since it uses as much as digits as its factorization.

2128469929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 52.

The square root of 2128469929 is about 46135.3435990239. The cubic root of 2128469929 is about 1286.3401923959.

The spelling of 2128469929 in words is "two billion, one hundred twenty-eight million, four hundred sixty-nine thousand, nine hundred twenty-nine".