174423399979 has 4 divisors (see below), whose sum is σ = 174426827176. Its totient is φ = 174419972784.

The previous prime is 174423399961. The next prime is 174423399989. The reversal of 174423399979 is 979993324471.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 174423399979 - 2⁷ = 174423399851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (174423399989) 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, 1636089 + ... + 1739434.

It is an arithmetic number, because the mean of its divisors is an integer number (43606706794).

Almost surely, 2^174423399979 is an apocalyptic number.

174423399979 is a deficient number, since it is larger than the sum of its proper divisors (3427197).

174423399979 is an equidigital number, since it uses as much as digits as its factorization.

174423399979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3427196.

The product of its digits is 92588832, while the sum is 67.

The spelling of 174423399979 in words is "one hundred seventy-four billion, four hundred twenty-three million, three hundred ninety-nine thousand, nine hundred seventy-nine".