27212045065 has 8 divisors (see below), whose sum is σ = 32668381440. Its totient is φ = 21760351152.

The previous prime is 27212044997. The next prime is 27212045087. The reversal of 27212045065 is 56054021272.

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 27212045065 - 2²⁹ = 26675174153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27212045065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1147705 + ... + 1171174.

It is an arithmetic number, because the mean of its divisors is an integer number (4083547680).

Almost surely, 2^27212045065 is an apocalyptic number.

It is an amenable number.

27212045065 is a deficient number, since it is larger than the sum of its proper divisors (5456336375).

27212045065 is a wasteful number, since it uses less digits than its factorization.

27212045065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321231.

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 27212045065 in words is "twenty-seven billion, two hundred twelve million, forty-five thousand, sixty-five".