27271462561 has 16 divisors (see below), whose sum is σ = 31764326400. Its totient is φ = 22929551568.

The previous prime is 27271462553. The next prime is 27271462571. The reversal of 27271462561 is 16526417272.

It is not a de Polignac number, because 27271462561 - 2³ = 27271462553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27271462571) 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 15 ways as a sum of consecutive naturals, for example, 119910 + ... + 262528.

It is an arithmetic number, because the mean of its divisors is an integer number (1985270400).

Almost surely, 2^27271462561 is an apocalyptic number.

It is an amenable number.

27271462561 is a deficient number, since it is larger than the sum of its proper divisors (4492863839).

27271462561 is a wasteful number, since it uses less digits than its factorization.

27271462561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143148.

The product of its digits is 282240, while the sum is 43.

The spelling of 27271462561 in words is "twenty-seven billion, two hundred seventy-one million, four hundred sixty-two thousand, five hundred sixty-one".