27131118232516 has 9 divisors (see below), whose sum is σ = 47479475137549. Its totient is φ = 13565553907504.

The previous prime is 27131118232489. The next prime is 27131118232549. The reversal of 27131118232516 is 61523281113172.

The square root of 27131118232516 is 5208754.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 498252456900 + 26632865775616 = 705870^2 + 5160704^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 9115320 + ... + 11719696.

Almost surely, 2^{27131118232516} is an apocalyptic number.

27131118232516 is the 5208754-th square number.

It is an amenable number.

27131118232516 is a deficient number, since it is larger than the sum of its proper divisors (20348356905033).

27131118232516 is an frugal number, since it uses more digits than its factorization.

27131118232516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5208758 (or 2604379 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

Adding to 27131118232516 its reverse (61523281113172), we get a palindrome (88654399345688).

The spelling of 27131118232516 in words is "twenty-seven trillion, one hundred thirty-one billion, one hundred eighteen million, two hundred thirty-two thousand, five hundred sixteen".