27480681245721 has 32 divisors (see below), whose sum is σ = 42326296329600. Its totient is φ = 15674103751680.

The previous prime is 27480681245711. The next prime is 27480681245753. The reversal of 27480681245721 is 12754218608472.

It is not a de Polignac number, because 27480681245721 - 2⁷ = 27480681245593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27480681245711) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5876475 + ... + 9460143.

It is an arithmetic number, because the mean of its divisors is an integer number (1322696760300).

Almost surely, 2^{27480681245721} is an apocalyptic number.

It is an amenable number.

27480681245721 is a deficient number, since it is larger than the sum of its proper divisors (14845615083879).

27480681245721 is a wasteful number, since it uses less digits than its factorization.

27480681245721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597369.

The product of its (nonzero) digits is 12042240, while the sum is 57.

The spelling of 27480681245721 in words is "twenty-seven trillion, four hundred eighty billion, six hundred eighty-one million, two hundred forty-five thousand, seven hundred twenty-one".