2170898879243 has 2 divisors, whose sum is σ = 2170898879244. Its totient is φ = 2170898879242.

The previous prime is 2170898879213. The next prime is 2170898879257. The reversal of 2170898879243 is 3429788980712.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2170898879243 - 2⁸ = 2170898878987 is a prime.

It is not a weakly prime, because it can be changed into another prime (2170898879213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1085449439621 + 1085449439622.

It is an arithmetic number, because the mean of its divisors is an integer number (1085449439622).

Almost surely, 2^{2170898879243} is an apocalyptic number.

2170898879243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170898879243 is an equidigital number, since it uses as much as digits as its factorization.

2170898879243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97542144, while the sum is 68.

The spelling of 2170898879243 in words is "two trillion, one hundred seventy billion, eight hundred ninety-eight million, eight hundred seventy-nine thousand, two hundred forty-three".