27151488487 has 4 divisors (see below), whose sum is σ = 27318062200. Its totient is φ = 26984914776.

The previous prime is 27151488473. The next prime is 27151488493. The reversal of 27151488487 is 78488415172.

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 27151488487 - 2¹⁵ = 27151455719 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 (27151488437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83286612 + ... + 83286937.

It is an arithmetic number, because the mean of its divisors is an integer number (6829515550).

Almost surely, 2^27151488487 is an apocalyptic number.

27151488487 is a deficient number, since it is larger than the sum of its proper divisors (166573713).

27151488487 is a wasteful number, since it uses less digits than its factorization.

27151488487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166573712.

The product of its digits is 4014080, while the sum is 55.

The spelling of 27151488487 in words is "twenty-seven billion, one hundred fifty-one million, four hundred eighty-eight thousand, four hundred eighty-seven".