27217332481 has 16 divisors (see below), whose sum is σ = 28102550400. Its totient is φ = 26348636160.

The previous prime is 27217332449. The next prime is 27217332487. The reversal of 27217332481 is 18423371272.

It is a cyclic number.

It is not a de Polignac number, because 27217332481 - 2⁵ = 27217332449 is a prime.

It is a super-2 number, since 2×27217332481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27217332487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1498945 + ... + 1516993.

It is an arithmetic number, because the mean of its divisors is an integer number (1756409400).

Almost surely, 2^27217332481 is an apocalyptic number.

It is an amenable number.

27217332481 is a deficient number, since it is larger than the sum of its proper divisors (885217919).

27217332481 is a wasteful number, since it uses less digits than its factorization.

27217332481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18504.

The product of its digits is 112896, while the sum is 40.

The spelling of 27217332481 in words is "twenty-seven billion, two hundred seventeen million, three hundred thirty-two thousand, four hundred eighty-one".