27021085207 has 8 divisors (see below), whose sum is σ = 27097821680. Its totient is φ = 26944401600.

The previous prime is 27021085177. The next prime is 27021085213. The reversal of 27021085207 is 70258012072.

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

It is a cyclic number.

It is not a de Polignac number, because 27021085207 - 2⁷ = 27021085079 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 (27021085307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154473 + ... + 1177645.

It is an arithmetic number, because the mean of its divisors is an integer number (3387227710).

Almost surely, 2^27021085207 is an apocalyptic number.

27021085207 is a deficient number, since it is larger than the sum of its proper divisors (76736473).

27021085207 is a wasteful number, since it uses less digits than its factorization.

27021085207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26433.

The product of its (nonzero) digits is 15680, while the sum is 34.

Adding to 27021085207 its reverse (70258012072), we get a palindrome (97279097279).

The spelling of 27021085207 in words is "twenty-seven billion, twenty-one million, eighty-five thousand, two hundred seven".