27894259911 has 16 divisors (see below), whose sum is σ = 42509245184. Its totient is φ = 15938187264.

The previous prime is 27894259859. The next prime is 27894259937. The reversal of 27894259911 is 11995249872.

It is not a de Polignac number, because 27894259911 - 2⁹ = 27894259399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27894259951) 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 in 15 ways as a sum of consecutive naturals, for example, 219591 + ... + 322503.

It is an arithmetic number, because the mean of its divisors is an integer number (2656827824).

Almost surely, 2^27894259911 is an apocalyptic number.

27894259911 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27894259911 is a deficient number, since it is larger than the sum of its proper divisors (14614985273).

27894259911 is a wasteful number, since it uses less digits than its factorization.

27894259911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115830.

The product of its digits is 3265920, while the sum is 57.

The spelling of 27894259911 in words is "twenty-seven billion, eight hundred ninety-four million, two hundred fifty-nine thousand, nine hundred eleven".