27984092545 has 8 divisors (see below), whose sum is σ = 33584708160. Its totient is φ = 22384742640.

The previous prime is 27984092533. The next prime is 27984092569. The reversal of 27984092545 is 54529048972.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27984092545 - 2⁹ = 27984092033 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267085 + ... + 356794.

It is an arithmetic number, because the mean of its divisors is an integer number (4198088520).

Almost surely, 2^27984092545 is an apocalyptic number.

It is an amenable number.

27984092545 is a deficient number, since it is larger than the sum of its proper divisors (5600615615).

27984092545 is an equidigital number, since it uses as much as digits as its factorization.

27984092545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632855.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The spelling of 27984092545 in words is "twenty-seven billion, nine hundred eighty-four million, ninety-two thousand, five hundred forty-five".