188964124642187 has 2 divisors, whose sum is σ = 188964124642188. Its totient is φ = 188964124642186.

The previous prime is 188964124642177. The next prime is 188964124642297. The reversal of 188964124642187 is 781246421469881.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188964124642187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 188964124642187.

It is not a weakly prime, because it can be changed into another prime (188964124642147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94482062321093 + 94482062321094.

It is an arithmetic number, because the mean of its divisors is an integer number (94482062321094).

Almost surely, 2^{188964124642187} is an apocalyptic number.

188964124642187 is a deficient number, since it is larger than the sum of its proper divisors (1).

188964124642187 is an equidigital number, since it uses as much as digits as its factorization.

188964124642187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 297271296, while the sum is 71.

The spelling of 188964124642187 in words is "one hundred eighty-eight trillion, nine hundred sixty-four billion, one hundred twenty-four million, six hundred forty-two thousand, one hundred eighty-seven".