12178044587 has 2 divisors, whose sum is σ = 12178044588. Its totient is φ = 12178044586.

The previous prime is 12178044539. The next prime is 12178044589. The reversal of 12178044587 is 78544087121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12178044587 - 2¹⁸ = 12177782443 is a prime.

Together with 12178044589, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12178044589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6089022293 + 6089022294.

It is an arithmetic number, because the mean of its divisors is an integer number (6089022294).

Almost surely, 2^12178044587 is an apocalyptic number.

12178044587 is a deficient number, since it is larger than the sum of its proper divisors (1).

12178044587 is an equidigital number, since it uses as much as digits as its factorization.

12178044587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 501760, while the sum is 47.

The spelling of 12178044587 in words is "twelve billion, one hundred seventy-eight million, forty-four thousand, five hundred eighty-seven".