27111040891 has 32 divisors (see below), whose sum is σ = 32387040000. Its totient is φ = 22417234560.

The previous prime is 27111040883. The next prime is 27111040897. The reversal of 27111040891 is 19804011172.

It is a cyclic number.

It is not a de Polignac number, because 27111040891 - 2³ = 27111040883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27111040897) 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 31 ways as a sum of consecutive naturals, for example, 1072425 + ... + 1097413.

It is an arithmetic number, because the mean of its divisors is an integer number (1012095000).

Almost surely, 2^27111040891 is an apocalyptic number.

27111040891 is a deficient number, since it is larger than the sum of its proper divisors (5275999109).

27111040891 is a wasteful number, since it uses less digits than its factorization.

27111040891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25227.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 27111040891 in words is "twenty-seven billion, one hundred eleven million, forty thousand, eight hundred ninety-one".