27190028727 has 20 divisors (see below), whose sum is σ = 40682895880. Its totient is φ = 18097368624.

The previous prime is 27190028687. The next prime is 27190028729. The reversal of 27190028727 is 72782009172.

It is a de Polignac number, because none of the positive numbers 2^k-27190028727 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 (27190028729) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 221008 + ... + 321285.

It is an arithmetic number, because the mean of its divisors is an integer number (2034144794).

Almost surely, 2^27190028727 is an apocalyptic number.

27190028727 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

27190028727 is a deficient number, since it is larger than the sum of its proper divisors (13492867153).

27190028727 is an equidigital number, since it uses as much as digits as its factorization.

27190028727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542924 (or 542915 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The spelling of 27190028727 in words is "twenty-seven billion, one hundred ninety million, twenty-eight thousand, seven hundred twenty-seven".