27065352021 has 4 divisors (see below), whose sum is σ = 36087136032. Its totient is φ = 18043568012.

The previous prime is 27065351981. The next prime is 27065352023. The reversal of 27065352021 is 12025356072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27065352021 - 2¹⁴ = 27065335637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27065352023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4510892001 + ... + 4510892006.

It is an arithmetic number, because the mean of its divisors is an integer number (9021784008).

Almost surely, 2^27065352021 is an apocalyptic number.

It is an amenable number.

27065352021 is a deficient number, since it is larger than the sum of its proper divisors (9021784011).

27065352021 is an equidigital number, since it uses as much as digits as its factorization.

27065352021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9021784010.

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 27065352021 in words is "twenty-seven billion, sixty-five million, three hundred fifty-two thousand, twenty-one".