27125274838 has 4 divisors (see below), whose sum is σ = 40687912260. Its totient is φ = 13562637418.

The previous prime is 27125274833. The next prime is 27125274907. The reversal of 27125274838 is 83847252172.

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

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 junction number, because it is equal to n+sod(n) for n = 27125274791 and 27125274800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27125274833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6781318708 + ... + 6781318711.

It is an arithmetic number, because the mean of its divisors is an integer number (10171978065).

Almost surely, 2^27125274838 is an apocalyptic number.

27125274838 is a deficient number, since it is larger than the sum of its proper divisors (13562637422).

27125274838 is a wasteful number, since it uses less digits than its factorization.

27125274838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13562637421.

The product of its digits is 1505280, while the sum is 49.

The spelling of 27125274838 in words is "twenty-seven billion, one hundred twenty-five million, two hundred seventy-four thousand, eight hundred thirty-eight".