27007881344 has 16 divisors (see below), whose sum is σ = 53804763870. Its totient is φ = 13503940608.

The previous prime is 27007881293. The next prime is 27007881347. The reversal of 27007881344 is 44318870072.

It can be written as a sum of positive squares in only one way, i.e., 26475194944 + 532686400 = 162712^2 + 23080^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 27007881295 and 27007881304.

It is not an unprimeable number, because it can be changed into a prime (27007881347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105499409 + ... + 105499664.

Almost surely, 2^27007881344 is an apocalyptic number.

It is an amenable number.

27007881344 is a deficient number, since it is larger than the sum of its proper divisors (26796882526).

27007881344 is an equidigital number, since it uses as much as digits as its factorization.

27007881344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210999087 (or 210999075 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 27007881344 in words is "twenty-seven billion, seven million, eight hundred eighty-one thousand, three hundred forty-four".