27281211013 has 16 divisors (see below), whose sum is σ = 31733953920. Its totient is φ = 22968000000.

The previous prime is 27281211011. The next prime is 27281211019. The reversal of 27281211013 is 31011218272.

It is a cyclic number.

It is not a de Polignac number, because 27281211013 - 2¹ = 27281211011 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 (27281211011) 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, 468513 + ... + 523513.

It is an arithmetic number, because the mean of its divisors is an integer number (1983372120).

Almost surely, 2^27281211013 is an apocalyptic number.

It is an amenable number.

27281211013 is a deficient number, since it is larger than the sum of its proper divisors (4452742907).

27281211013 is a wasteful number, since it uses less digits than its factorization.

27281211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56268.

The product of its (nonzero) digits is 1344, while the sum is 28.

Adding to 27281211013 its reverse (31011218272), we get a palindrome (58292429285).

The spelling of 27281211013 in words is "twenty-seven billion, two hundred eighty-one million, two hundred eleven thousand, thirteen".