387178618051187 has 2 divisors, whose sum is σ = 387178618051188. Its totient is φ = 387178618051186.

The previous prime is 387178618051177. The next prime is 387178618051189. The reversal of 387178618051187 is 781150816871783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 387178618051187 - 2²⁸ = 387178349615731 is a prime.

Together with 387178618051189, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 387178618051187.

It is not a weakly prime, because it can be changed into another prime (387178618051189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193589309025593 + 193589309025594.

It is an arithmetic number, because the mean of its divisors is an integer number (193589309025594).

Almost surely, 2^{387178618051187} is an apocalyptic number.

387178618051187 is a deficient number, since it is larger than the sum of its proper divisors (1).

387178618051187 is an equidigital number, since it uses as much as digits as its factorization.

387178618051187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126443520, while the sum is 71.

The spelling of 387178618051187 in words is "three hundred eighty-seven trillion, one hundred seventy-eight billion, six hundred eighteen million, fifty-one thousand, one hundred eighty-seven".