27373472217745 has 4 divisors (see below), whose sum is σ = 32848166661300. Its totient is φ = 21898777774192.

The previous prime is 27373472217739. The next prime is 27373472217757. The reversal of 27373472217745 is 54771227437372.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16023304479744 + 11350167738001 = 4002912^2 + 3369001^2 .

It is a cyclic number.

It is not a de Polignac number, because 27373472217745 - 2³ = 27373472217737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2737347221770 + ... + 2737347221779.

It is an arithmetic number, because the mean of its divisors is an integer number (8212041665325).

Almost surely, 2^{27373472217745} is an apocalyptic number.

It is an amenable number.

27373472217745 is a deficient number, since it is larger than the sum of its proper divisors (5474694443555).

27373472217745 is an equidigital number, since it uses as much as digits as its factorization.

27373472217745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474694443554.

The product of its digits is 96808320, while the sum is 61.

The spelling of 27373472217745 in words is "twenty-seven trillion, three hundred seventy-three billion, four hundred seventy-two million, two hundred seventeen thousand, seven hundred forty-five".