27411491893 has 16 divisors (see below), whose sum is σ = 28361052720. Its totient is φ = 26475724800.

The previous prime is 27411491879. The next prime is 27411491923. The reversal of 27411491893 is 39819411472.

It can be written as a sum of positive squares in 8 ways, for example, as 2882293969 + 24529197924 = 53687^2 + 156618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27411491893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27411491813) 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, 9012453 + ... + 9015493.

It is an arithmetic number, because the mean of its divisors is an integer number (1772565795).

Almost surely, 2^27411491893 is an apocalyptic number.

It is an amenable number.

27411491893 is a deficient number, since it is larger than the sum of its proper divisors (949560827).

27411491893 is a wasteful number, since it uses less digits than its factorization.

27411491893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5208.

The product of its digits is 435456, while the sum is 49.

The spelling of 27411491893 in words is "twenty-seven billion, four hundred eleven million, four hundred ninety-one thousand, eight hundred ninety-three".