2128445933 has 2 divisors, whose sum is σ = 2128445934. Its totient is φ = 2128445932.

The previous prime is 2128445909. The next prime is 2128445983. The reversal of 2128445933 is 3395448212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1935736009 + 192709924 = 43997^2 + 13882^2 .

It is a cyclic number.

It is not a de Polignac number, because 2128445933 - 2⁸ = 2128445677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128445983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064222966 + 1064222967.

It is an arithmetic number, because the mean of its divisors is an integer number (1064222967).

Almost surely, 2^2128445933 is an apocalyptic number.

It is an amenable number.

2128445933 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128445933 is an equidigital number, since it uses as much as digits as its factorization.

2128445933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 41.

The square root of 2128445933 is about 46135.0835373688. The cubic root of 2128445933 is about 1286.3353583859.

The spelling of 2128445933 in words is "two billion, one hundred twenty-eight million, four hundred forty-five thousand, nine hundred thirty-three".