2174269173421 has 4 divisors (see below), whose sum is σ = 2220530219712. Its totient is φ = 2128008127132.

The previous prime is 2174269173413. The next prime is 2174269173431. The reversal of 2174269173421 is 1243719624712.

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 2174269173421 - 2³ = 2174269173413 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2174269173431) 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, 23130523075 + ... + 23130523168.

It is an arithmetic number, because the mean of its divisors is an integer number (555132554928).

Almost surely, 2^{2174269173421} is an apocalyptic number.

It is an amenable number.

2174269173421 is a deficient number, since it is larger than the sum of its proper divisors (46261046291).

2174269173421 is an equidigital number, since it uses as much as digits as its factorization.

2174269173421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46261046290.

The product of its digits is 1016064, while the sum is 49.

The spelling of 2174269173421 in words is "two trillion, one hundred seventy-four billion, two hundred sixty-nine million, one hundred seventy-three thousand, four hundred twenty-one".