27013887451 has 6 divisors (see below), whose sum is σ = 28696413620. Its totient is φ = 25424834976.

The previous prime is 27013887449. The next prime is 27013887487. The reversal of 27013887451 is 15478831072.

It is not a de Polignac number, because 27013887451 - 2¹ = 27013887449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27013887401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46736541 + ... + 46737118.

Almost surely, 2^27013887451 is an apocalyptic number.

27013887451 is a deficient number, since it is larger than the sum of its proper divisors (1682526169).

27013887451 is an equidigital number, since it uses as much as digits as its factorization.

27013887451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93473693 (or 93473676 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 46.

The spelling of 27013887451 in words is "twenty-seven billion, thirteen million, eight hundred eighty-seven thousand, four hundred fifty-one".