27134626557 has 4 divisors (see below), whose sum is σ = 36179502080. Its totient is φ = 18089751036.

The previous prime is 27134626543. The next prime is 27134626559. The reversal of 27134626557 is 75562643172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 27134626557 - 2¹⁰ = 27134625533 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 (27134626559) 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, 4522437757 + ... + 4522437762.

It is an arithmetic number, because the mean of its divisors is an integer number (9044875520).

Almost surely, 2^27134626557 is an apocalyptic number.

It is an amenable number.

27134626557 is a deficient number, since it is larger than the sum of its proper divisors (9044875523).

27134626557 is an equidigital number, since it uses as much as digits as its factorization.

27134626557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9044875522.

The product of its digits is 2116800, while the sum is 48.

The spelling of 27134626557 in words is "twenty-seven billion, one hundred thirty-four million, six hundred twenty-six thousand, five hundred fifty-seven".