27656806087 has 8 divisors (see below), whose sum is σ = 29480940800. Its totient is φ = 25869522744.

The previous prime is 27656806069. The next prime is 27656806097. The reversal of 27656806087 is 78060865672.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27656806087 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 (27656806057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9211293 + ... + 9214294.

It is an arithmetic number, because the mean of its divisors is an integer number (3685117600).

Almost surely, 2^27656806087 is an apocalyptic number.

27656806087 is a deficient number, since it is larger than the sum of its proper divisors (1824134713).

27656806087 is a wasteful number, since it uses less digits than its factorization.

27656806087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18425685.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 27656806087 in words is "twenty-seven billion, six hundred fifty-six million, eight hundred six thousand, eighty-seven".