27752660443 has 4 divisors (see below), whose sum is σ = 27825886840. Its totient is φ = 27679434048.

The previous prime is 27752660423. The next prime is 27752660461. The reversal of 27752660443 is 34406625772.

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 27752660443 - 2¹³ = 27752652251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27752660393 and 27752660402.

It is not an unprimeable number, because it can be changed into a prime (27752660413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36612630 + ... + 36613387.

It is an arithmetic number, because the mean of its divisors is an integer number (6956471710).

Almost surely, 2^27752660443 is an apocalyptic number.

27752660443 is a deficient number, since it is larger than the sum of its proper divisors (73226397).

27752660443 is an equidigital number, since it uses as much as digits as its factorization.

27752660443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73226396.

The product of its (nonzero) digits is 1693440, while the sum is 46.

The spelling of 27752660443 in words is "twenty-seven billion, seven hundred fifty-two million, six hundred sixty thousand, four hundred forty-three".