27838434173 has 8 divisors (see below), whose sum is σ = 30391433280. Its totient is φ = 25289140480.

The previous prime is 27838434157. The next prime is 27838434187. The reversal of 27838434173 is 37143483872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27838434173 - 2⁴ = 27838434157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27838434103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910628 + ... + 940701.

It is an arithmetic number, because the mean of its divisors is an integer number (3798929160).

Almost surely, 2^27838434173 is an apocalyptic number.

It is an amenable number.

27838434173 is a deficient number, since it is larger than the sum of its proper divisors (2552999107).

27838434173 is a wasteful number, since it uses less digits than its factorization.

27838434173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852707.

The product of its digits is 2709504, while the sum is 50.

The spelling of 27838434173 in words is "twenty-seven billion, eight hundred thirty-eight million, four hundred thirty-four thousand, one hundred seventy-three".