27148378287 has 8 divisors (see below), whose sum is σ = 36199793536. Its totient is φ = 18097940952.

The previous prime is 27148378273. The next prime is 27148378297. The reversal of 27148378287 is 78287384172.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27148378287 - 2⁸ = 27148378031 is a prime.

It is a super-2 number, since 2×27148378287² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27148378207) 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 7 ways as a sum of consecutive naturals, for example, 177043 + ... + 292644.

It is an arithmetic number, because the mean of its divisors is an integer number (4524974192).

Almost surely, 2^27148378287 is an apocalyptic number.

27148378287 is a deficient number, since it is larger than the sum of its proper divisors (9051415249).

27148378287 is a wasteful number, since it uses less digits than its factorization.

27148378287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488957.

The product of its digits is 8429568, while the sum is 57.

The spelling of 27148378287 in words is "twenty-seven billion, one hundred forty-eight million, three hundred seventy-eight thousand, two hundred eighty-seven".