27017021913 has 8 divisors (see below), whose sum is σ = 41168795328. Its totient is φ = 15438298224.

The previous prime is 27017021887. The next prime is 27017021929. The reversal of 27017021913 is 31912071072.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27017021913 - 2⁵ = 27017021881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27017021953) 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 7 ways as a sum of consecutive naturals, for example, 643262406 + ... + 643262447.

It is an arithmetic number, because the mean of its divisors is an integer number (5146099416).

Almost surely, 2^27017021913 is an apocalyptic number.

It is an amenable number.

27017021913 is a deficient number, since it is larger than the sum of its proper divisors (14151773415).

27017021913 is a wasteful number, since it uses less digits than its factorization.

27017021913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286524863.

The product of its (nonzero) digits is 5292, while the sum is 33.

Adding to 27017021913 its reverse (31912071072), we get a palindrome (58929092985).

The spelling of 27017021913 in words is "twenty-seven billion, seventeen million, twenty-one thousand, nine hundred thirteen".