27752330605 has 8 divisors (see below), whose sum is σ = 33311463192. Its totient is φ = 22196086848.

The previous prime is 27752330603. The next prime is 27752330681. The reversal of 27752330605 is 50603325772.

It can be written as a sum of positive squares in 4 ways, for example, as 16473465801 + 11278864804 = 128349^2 + 106202^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 27752330605 - 2¹ = 27752330603 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 (27752330603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 701014 + ... + 739543.

It is an arithmetic number, because the mean of its divisors is an integer number (4163932899).

Almost surely, 2^27752330605 is an apocalyptic number.

It is an amenable number.

27752330605 is a deficient number, since it is larger than the sum of its proper divisors (5559132587).

27752330605 is a wasteful number, since it uses less digits than its factorization.

27752330605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444415.

The product of its (nonzero) digits is 264600, while the sum is 40.

The spelling of 27752330605 in words is "twenty-seven billion, seven hundred fifty-two million, three hundred thirty thousand, six hundred five".