27105806073 has 4 divisors (see below), whose sum is σ = 36141074768. Its totient is φ = 18070537380.

The previous prime is 27105806053. The next prime is 27105806081. The reversal of 27105806073 is 37060850172.

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 not a de Polignac number, because 27105806073 - 2²⁵ = 27072251641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27105806033) 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, 4517634343 + ... + 4517634348.

It is an arithmetic number, because the mean of its divisors is an integer number (9035268692).

Almost surely, 2^27105806073 is an apocalyptic number.

It is an amenable number.

27105806073 is a deficient number, since it is larger than the sum of its proper divisors (9035268695).

27105806073 is an equidigital number, since it uses as much as digits as its factorization.

27105806073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9035268694.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 27105806073 in words is "twenty-seven billion, one hundred five million, eight hundred six thousand, seventy-three".