2143680814069 has 2 divisors, whose sum is σ = 2143680814070. Its totient is φ = 2143680814068.

The previous prime is 2143680814027. The next prime is 2143680814087. The reversal of 2143680814069 is 9604180863412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1662165562500 + 481515251569 = 1289250^2 + 693913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2143680814069 is a prime.

It is a super-2 number, since 2×2143680814069² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143680844069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071840407034 + 1071840407035.

It is an arithmetic number, because the mean of its divisors is an integer number (1071840407035).

Almost surely, 2^{2143680814069} is an apocalyptic number.

It is an amenable number.

2143680814069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143680814069 is an equidigital number, since it uses as much as digits as its factorization.

2143680814069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 2143680814069 in words is "two trillion, one hundred forty-three billion, six hundred eighty million, eight hundred fourteen thousand, sixty-nine".