27375656491 has 8 divisors (see below), whose sum is σ = 27583219440. Its totient is φ = 27168245472.

The previous prime is 27375656467. The next prime is 27375656531. The reversal of 27375656491 is 19465657372.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27375656491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27375653491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337761 + ... + 410893.

It is an arithmetic number, because the mean of its divisors is an integer number (3447902430).

Almost surely, 2^27375656491 is an apocalyptic number.

27375656491 is a deficient number, since it is larger than the sum of its proper divisors (207562949).

27375656491 is a wasteful number, since it uses less digits than its factorization.

27375656491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75965.

The product of its digits is 9525600, while the sum is 55.

The spelling of 27375656491 in words is "twenty-seven billion, three hundred seventy-five million, six hundred fifty-six thousand, four hundred ninety-one".