2126911806793 has 2 divisors, whose sum is σ = 2126911806794. Its totient is φ = 2126911806792.

The previous prime is 2126911806779. The next prime is 2126911806869. The reversal of 2126911806793 is 3976081196212.

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., 1974216084624 + 152695722169 = 1405068^2 + 390763^2 .

It is a cyclic number.

It is not a de Polignac number, because 2126911806793 - 2²¹ = 2126909709641 is a prime.

It is not a weakly prime, because it can be changed into another prime (2126971806793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1063455903396 + 1063455903397.

It is an arithmetic number, because the mean of its divisors is an integer number (1063455903397).

Almost surely, 2^{2126911806793} is an apocalyptic number.

It is an amenable number.

2126911806793 is a deficient number, since it is larger than the sum of its proper divisors (1).

2126911806793 is an equidigital number, since it uses as much as digits as its factorization.

2126911806793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 2126911806793 in words is "two trillion, one hundred twenty-six billion, nine hundred eleven million, eight hundred six thousand, seven hundred ninety-three".