27581248051 has 16 divisors (see below), whose sum is σ = 32699289600. Its totient is φ = 22762218528.

The previous prime is 27581247997. The next prime is 27581248063. The reversal of 27581248051 is 15084218572.

It is not a de Polignac number, because 27581248051 - 2¹⁹ = 27580723763 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27581247989 and 27581248007.

It is not an unprimeable number, because it can be changed into a prime (27581248081) 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, 116355 + ... + 262108.

It is an arithmetic number, because the mean of its divisors is an integer number (2043705600).

Almost surely, 2^27581248051 is an apocalyptic number.

27581248051 is a deficient number, since it is larger than the sum of its proper divisors (5118041549).

27581248051 is a wasteful number, since it uses less digits than its factorization.

27581248051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378858.

The product of its (nonzero) digits is 179200, while the sum is 43.

The spelling of 27581248051 in words is "twenty-seven billion, five hundred eighty-one million, two hundred forty-eight thousand, fifty-one".