27027545723 has 4 divisors (see below), whose sum is σ = 27353178888. Its totient is φ = 26701912560.

The previous prime is 27027545689. The next prime is 27027545731. The reversal of 27027545723 is 32754572072.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27027545723 - 2¹⁶ = 27027480187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27027545023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162816458 + ... + 162816623.

It is an arithmetic number, because the mean of its divisors is an integer number (6838294722).

Almost surely, 2^27027545723 is an apocalyptic number.

27027545723 is a deficient number, since it is larger than the sum of its proper divisors (325633165).

27027545723 is an equidigital number, since it uses as much as digits as its factorization.

27027545723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325633164.

The product of its (nonzero) digits is 823200, while the sum is 44.

The spelling of 27027545723 in words is "twenty-seven billion, twenty-seven million, five hundred forty-five thousand, seven hundred twenty-three".