2128451069293 has 2 divisors, whose sum is σ = 2128451069294. Its totient is φ = 2128451069292.

The previous prime is 2128451069273. The next prime is 2128451069347. The reversal of 2128451069293 is 3929601548212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1631387998564 + 497063070729 = 1277258^2 + 705027^2 .

It is a cyclic number.

It is not a de Polignac number, because 2128451069293 - 2⁹ = 2128451068781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2128451069293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128451069273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064225534646 + 1064225534647.

It is an arithmetic number, because the mean of its divisors is an integer number (1064225534647).

Almost surely, 2^{2128451069293} is an apocalyptic number.

It is an amenable number.

2128451069293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128451069293 is an equidigital number, since it uses as much as digits as its factorization.

2128451069293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 2128451069293 in words is "two trillion, one hundred twenty-eight billion, four hundred fifty-one million, sixty-nine thousand, two hundred ninety-three".