27256169838 has 8 divisors (see below), whose sum is σ = 54512339688. Its totient is φ = 9085389944.

The previous prime is 27256169833. The next prime is 27256169839. The reversal of 27256169838 is 83896165272.

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

27256169838 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27256169833) 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, 2271347481 + ... + 2271347492.

It is an arithmetic number, because the mean of its divisors is an integer number (6814042461).

Almost surely, 2^27256169838 is an apocalyptic number.

27256169838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27256169838 is a wasteful number, since it uses less digits than its factorization.

27256169838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542694978.

The product of its digits is 8709120, while the sum is 57.

The spelling of 27256169838 in words is "twenty-seven billion, two hundred fifty-six million, one hundred sixty-nine thousand, eight hundred thirty-eight".