2133997693 has 2 divisors, whose sum is σ = 2133997694. Its totient is φ = 2133997692.

The previous prime is 2133997687. The next prime is 2133997721. The reversal of 2133997693 is 3967993312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2120878809 + 13118884 = 46053^2 + 3622^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133997693 - 2¹⁷ = 2133866621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2133997693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2133997493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066998846 + 1066998847.

It is an arithmetic number, because the mean of its divisors is an integer number (1066998847).

Almost surely, 2^2133997693 is an apocalyptic number.

It is an amenable number.

2133997693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133997693 is an equidigital number, since it uses as much as digits as its factorization.

2133997693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1653372, while the sum is 52.

The square root of 2133997693 is about 46195.2128796913. The cubic root of 2133997693 is about 1287.4527973143.

The spelling of 2133997693 in words is "two billion, one hundred thirty-three million, nine hundred ninety-seven thousand, six hundred ninety-three".