2128952718353 has 2 divisors, whose sum is σ = 2128952718354. Its totient is φ = 2128952718352.

The previous prime is 2128952718317. The next prime is 2128952718367. The reversal of 2128952718353 is 3538172598212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2094932022544 + 34020695809 = 1447388^2 + 184447^2 .

It is a cyclic number.

It is not a de Polignac number, because 2128952718353 - 2³⁰ = 2127878976529 is a prime.

It is not a weakly prime, because it can be changed into another prime (2128952715353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064476359176 + 1064476359177.

It is an arithmetic number, because the mean of its divisors is an integer number (1064476359177).

Almost surely, 2^{2128952718353} is an apocalyptic number.

It is an amenable number.

2128952718353 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128952718353 is an equidigital number, since it uses as much as digits as its factorization.

2128952718353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 56.

The spelling of 2128952718353 in words is "two trillion, one hundred twenty-eight billion, nine hundred fifty-two million, seven hundred eighteen thousand, three hundred fifty-three".