27627161243 has 4 divisors (see below), whose sum is σ = 30138721368. Its totient is φ = 25115601120.

The previous prime is 27627161239. The next prime is 27627161251. The reversal of 27627161243 is 34216172672.

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 27627161243 - 2² = 27627161239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27627161243.

It is not an unprimeable number, because it can be changed into a prime (27627161543) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1255780046 + ... + 1255780067.

It is an arithmetic number, because the mean of its divisors is an integer number (7534680342).

Almost surely, 2^27627161243 is an apocalyptic number.

27627161243 is a deficient number, since it is larger than the sum of its proper divisors (2511560125).

27627161243 is a wasteful number, since it uses less digits than its factorization.

27627161243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511560124.

The product of its digits is 169344, while the sum is 41.

The spelling of 27627161243 in words is "twenty-seven billion, six hundred twenty-seven million, one hundred sixty-one thousand, two hundred forty-three".