2143645373711 has 2 divisors, whose sum is σ = 2143645373712. Its totient is φ = 2143645373710.

The previous prime is 2143645373689. The next prime is 2143645373729. The reversal of 2143645373711 is 1173735463412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2143645373711 - 2⁶ = 2143645373647 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143645393711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071822686855 + 1071822686856.

It is an arithmetic number, because the mean of its divisors is an integer number (1071822686856).

Almost surely, 2^{2143645373711} is an apocalyptic number.

2143645373711 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143645373711 is an equidigital number, since it uses as much as digits as its factorization.

2143645373711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 47.

The spelling of 2143645373711 in words is "two trillion, one hundred forty-three billion, six hundred forty-five million, three hundred seventy-three thousand, seven hundred eleven".