174138120923 has 16 divisors (see below), whose sum is σ = 189057607200. Its totient is φ = 159437591040.

The previous prime is 174138120917. The next prime is 174138120983. The reversal of 174138120923 is 329021831471.

It is a happy number.

It is not a de Polignac number, because 174138120923 - 2¹⁰ = 174138119899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (174138120983) 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, 3601673 + ... + 3649701.

It is an arithmetic number, because the mean of its divisors is an integer number (11816100450).

Almost surely, 2^174138120923 is an apocalyptic number.

174138120923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

174138120923 is a deficient number, since it is larger than the sum of its proper divisors (14919486277).

174138120923 is a wasteful number, since it uses less digits than its factorization.

174138120923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50302.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 174138120923 in words is "one hundred seventy-four billion, one hundred thirty-eight million, one hundred twenty thousand, nine hundred twenty-three".