27752338427 has 4 divisors (see below), whose sum is σ = 30275278296. Its totient is φ = 25229398560.

The previous prime is 27752338421. The next prime is 27752338441. The reversal of 27752338427 is 72483325772.

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 27752338427 - 2¹⁸ = 27752076283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27752338421) 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, 1261469918 + ... + 1261469939.

It is an arithmetic number, because the mean of its divisors is an integer number (7568819574).

Almost surely, 2^27752338427 is an apocalyptic number.

27752338427 is a deficient number, since it is larger than the sum of its proper divisors (2522939869).

27752338427 is a wasteful number, since it uses less digits than its factorization.

27752338427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522939868.

The product of its digits is 3951360, while the sum is 50.

The spelling of 27752338427 in words is "twenty-seven billion, seven hundred fifty-two million, three hundred thirty-eight thousand, four hundred twenty-seven".