27740000087 has 8 divisors (see below), whose sum is σ = 29869592400. Its totient is φ = 25665721984.

The previous prime is 27739999999. The next prime is 27740000107. The reversal of 27740000087 is 78000004772.

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

It is not a de Polignac number, because 27740000087 - 2⁸ = 27739999831 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 (27740003087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13827512 + ... + 13829517.

It is an arithmetic number, because the mean of its divisors is an integer number (3733699050).

Almost surely, 2^27740000087 is an apocalyptic number.

27740000087 is a deficient number, since it is larger than the sum of its proper divisors (2129592313).

27740000087 is a wasteful number, since it uses less digits than its factorization.

27740000087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27657105.

The product of its (nonzero) digits is 21952, while the sum is 35.

The spelling of 27740000087 in words is "twenty-seven billion, seven hundred forty million, eighty-seven", and thus it is an aban number.