27538538527 has 4 divisors (see below), whose sum is σ = 29158452576. Its totient is φ = 25918624480.

The previous prime is 27538538501. The next prime is 27538538567. The reversal of 27538538527 is 72583583572.

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 27538538527 - 2⁷ = 27538538399 is a prime.

It is a super-2 number, since 2×27538538527² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27538538567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809956999 + ... + 809957032.

It is an arithmetic number, because the mean of its divisors is an integer number (7289613144).

Almost surely, 2^27538538527 is an apocalyptic number.

27538538527 is a deficient number, since it is larger than the sum of its proper divisors (1619914049).

27538538527 is a wasteful number, since it uses less digits than its factorization.

27538538527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619914048.

The product of its digits is 14112000, while the sum is 55.

The spelling of 27538538527 in words is "twenty-seven billion, five hundred thirty-eight million, five hundred thirty-eight thousand, five hundred twenty-seven".