27431104891 has 8 divisors (see below), whose sum is σ = 27678009744. Its totient is φ = 27184876800.

The previous prime is 27431104867. The next prime is 27431104903. The reversal of 27431104891 is 19840113472.

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 27431104891 - 2¹⁷ = 27430973819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27431102891) 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, 87585 + ... + 250066.

It is an arithmetic number, because the mean of its divisors is an integer number (3459751218).

Almost surely, 2^27431104891 is an apocalyptic number.

27431104891 is a deficient number, since it is larger than the sum of its proper divisors (246904853).

27431104891 is a wasteful number, since it uses less digits than its factorization.

27431104891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338381.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 27431104891 in words is "twenty-seven billion, four hundred thirty-one million, one hundred four thousand, eight hundred ninety-one".