2173481842673 has 4 divisors (see below), whose sum is σ = 2267981053248. Its totient is φ = 2078982632100.

The previous prime is 2173481842669. The next prime is 2173481842723. The reversal of 2173481842673 is 3762481843712.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2173481842673 - 2² = 2173481842669 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2173481842603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47249605253 + ... + 47249605298.

It is an arithmetic number, because the mean of its divisors is an integer number (566995263312).

Almost surely, 2^{2173481842673} is an apocalyptic number.

2173481842673 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2173481842673 is a deficient number, since it is larger than the sum of its proper divisors (94499210575).

2173481842673 is an equidigital number, since it uses as much as digits as its factorization.

2173481842673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94499210574.

The product of its digits is 10838016, while the sum is 56.

The spelling of 2173481842673 in words is "two trillion, one hundred seventy-three billion, four hundred eighty-one million, eight hundred forty-two thousand, six hundred seventy-three".