27754550687 has 2 divisors, whose sum is σ = 27754550688. Its totient is φ = 27754550686.

The previous prime is 27754550627. The next prime is 27754550689. The reversal of 27754550687 is 78605545772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27754550687 - 2²² = 27750356383 is a prime.

Together with 27754550689, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27754550689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13877275343 + 13877275344.

It is an arithmetic number, because the mean of its divisors is an integer number (13877275344).

Almost surely, 2^27754550687 is an apocalyptic number.

27754550687 is a deficient number, since it is larger than the sum of its proper divisors (1).

27754550687 is an equidigital number, since it uses as much as digits as its factorization.

27754550687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464000, while the sum is 56.

The spelling of 27754550687 in words is "twenty-seven billion, seven hundred fifty-four million, five hundred fifty thousand, six hundred eighty-seven".