27853432487 has 2 divisors, whose sum is σ = 27853432488. Its totient is φ = 27853432486.

The previous prime is 27853432463. The next prime is 27853432493. The reversal of 27853432487 is 78423435872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27853432487 - 2¹² = 27853428391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27853432457) 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 as a sum of consecutive naturals, namely, 13926716243 + 13926716244.

It is an arithmetic number, because the mean of its divisors is an integer number (13926716244).

Almost surely, 2^27853432487 is an apocalyptic number.

27853432487 is a deficient number, since it is larger than the sum of its proper divisors (1).

27853432487 is an equidigital number, since it uses as much as digits as its factorization.

27853432487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9031680, while the sum is 53.

The spelling of 27853432487 in words is "twenty-seven billion, eight hundred fifty-three million, four hundred thirty-two thousand, four hundred eighty-seven".