187968650687 has 2 divisors, whose sum is σ = 187968650688. Its totient is φ = 187968650686.

The previous prime is 187968650669. The next prime is 187968650693. The reversal of 187968650687 is 786056869781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 187968650687 - 2²⁰ = 187967602111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 187968650687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (187968650087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93984325343 + 93984325344.

It is an arithmetic number, because the mean of its divisors is an integer number (93984325344).

Almost surely, 2^187968650687 is an apocalyptic number.

187968650687 is a deficient number, since it is larger than the sum of its proper divisors (1).

187968650687 is an equidigital number, since it uses as much as digits as its factorization.

187968650687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243855360, while the sum is 71.

The spelling of 187968650687 in words is "one hundred eighty-seven billion, nine hundred sixty-eight million, six hundred fifty thousand, six hundred eighty-seven".