27162006481 has 3 divisors (see below), whose sum is σ = 27162171291. Its totient is φ = 27161841672.

The previous prime is 27162006413. The next prime is 27162006497. The reversal of 27162006481 is 18460026172.

The square root of 27162006481 is 164809.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 26647624081 + 514382400 = 163241^2 + 22680^2 .

It is not a de Polignac number, because 27162006481 - 2¹⁹ = 27161482193 is a prime.

It is a super-2 number, since 2×27162006481² (a number of 22 digits) contains 22 as substring.

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 27162006481.

It is not an unprimeable number, because it can be changed into a prime (27162004481) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 82405 + ... + 247213.

It is an arithmetic number, because the mean of its divisors is an integer number (9054057097).

Almost surely, 2^27162006481 is an apocalyptic number.

27162006481 is the 164809-th square number.

27162006481 is the 82405-th centered octagonal number.

It is an amenable number.

27162006481 is a deficient number, since it is larger than the sum of its proper divisors (164810).

27162006481 is an frugal number, since it uses more digits than its factorization.

27162006481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329618 (or 164809 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 27162006481 in words is "twenty-seven billion, one hundred sixty-two million, six thousand, four hundred eighty-one".