27005800487 has 4 divisors (see below), whose sum is σ = 27010257816. Its totient is φ = 27001343160.

The previous prime is 27005800421. The next prime is 27005800561. The reversal of 27005800487 is 78400850072.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27005800487 - 2⁸ = 27005800231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27005800187) 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 3 ways as a sum of consecutive naturals, for example, 2219564 + ... + 2231697.

It is an arithmetic number, because the mean of its divisors is an integer number (6752564454).

Almost surely, 2^27005800487 is an apocalyptic number.

27005800487 is a deficient number, since it is larger than the sum of its proper divisors (4457329).

27005800487 is an equidigital number, since it uses as much as digits as its factorization.

27005800487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457328.

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 27005800487 in words is "twenty-seven billion, five million, eight hundred thousand, four hundred eighty-seven".