168087681187 has 8 divisors (see below), whose sum is σ = 171617999616. Its totient is φ = 164587408392.

The previous prime is 168087681133. The next prime is 168087681241. The reversal of 168087681187 is 781186780861.

168087681187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168087681133) and next prime (168087681241).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168087681187 - 2³⁵ = 133727942819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168087661187) 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 in 7 ways as a sum of consecutive naturals, for example, 7500103 + ... + 7522480.

It is an arithmetic number, because the mean of its divisors is an integer number (21452249952).

Almost surely, 2^168087681187 is an apocalyptic number.

168087681187 is a deficient number, since it is larger than the sum of its proper divisors (3530318429).

168087681187 is a wasteful number, since it uses less digits than its factorization.

168087681187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15022817.

The product of its (nonzero) digits is 7225344, while the sum is 61.

The spelling of 168087681187 in words is "one hundred sixty-eight billion, eighty-seven million, six hundred eighty-one thousand, one hundred eighty-seven".