27647344011 has 32 divisors (see below), whose sum is σ = 44360335360. Its totient is φ = 14962353696.

The previous prime is 27647343887. The next prime is 27647344013. The reversal of 27647344011 is 11044374672.

It is not a de Polignac number, because 27647344011 - 2⁷ = 27647343883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27647344013) 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, 1574100 + ... + 1591566.

It is an arithmetic number, because the mean of its divisors is an integer number (1386260480).

Almost surely, 2^27647344011 is an apocalyptic number.

27647344011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

27647344011 is a deficient number, since it is larger than the sum of its proper divisors (16712991349).

27647344011 is a wasteful number, since it uses less digits than its factorization.

27647344011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21463.

The product of its (nonzero) digits is 112896, while the sum is 39.

The spelling of 27647344011 in words is "twenty-seven billion, six hundred forty-seven million, three hundred forty-four thousand, eleven".