2173395926171 has 16 divisors (see below), whose sum is σ = 2201751266400. Its totient is φ = 2145207740928.

The previous prime is 2173395926167. The next prime is 2173395926239. The reversal of 2173395926171 is 1716295933712.

It is a cyclic number.

It is not a de Polignac number, because 2173395926171 - 2² = 2173395926167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2173395926971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74731685 + ... + 74760761.

It is an arithmetic number, because the mean of its divisors is an integer number (137609454150).

Almost surely, 2^{2173395926171} is an apocalyptic number.

2173395926171 is a deficient number, since it is larger than the sum of its proper divisors (28355340229).

2173395926171 is a wasteful number, since it uses less digits than its factorization.

2173395926171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31918.

The product of its digits is 4286520, while the sum is 56.

The spelling of 2173395926171 in words is "two trillion, one hundred seventy-three billion, three hundred ninety-five million, nine hundred twenty-six thousand, one hundred seventy-one".