2128319407 has 2 divisors, whose sum is σ = 2128319408. Its totient is φ = 2128319406.

The previous prime is 2128319339. The next prime is 2128319411. The reversal of 2128319407 is 7049138212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2128319407 - 2⁷ = 2128319279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128319107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064159703 + 1064159704.

It is an arithmetic number, because the mean of its divisors is an integer number (1064159704).

Almost surely, 2^2128319407 is an apocalyptic number.

2128319407 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128319407 is an equidigital number, since it uses as much as digits as its factorization.

2128319407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 2128319407 is about 46133.7122612087. The cubic root of 2128319407 is about 1286.3098690386.

The spelling of 2128319407 in words is "two billion, one hundred twenty-eight million, three hundred nineteen thousand, four hundred seven".