168687001867 has 8 divisors (see below), whose sum is σ = 169936139520. Its totient is φ = 167438372520.

The previous prime is 168687001823. The next prime is 168687001891. The reversal of 168687001867 is 768100786861.

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 168687001867 - 2¹⁹ = 168686477579 is a prime.

It is a super-2 number, since 2×168687001867² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168687001267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552498 + ... + 801640.

It is an arithmetic number, because the mean of its divisors is an integer number (21242017440).

Almost surely, 2^168687001867 is an apocalyptic number.

168687001867 is a deficient number, since it is larger than the sum of its proper divisors (1249137653).

168687001867 is a wasteful number, since it uses less digits than its factorization.

168687001867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254153.

The product of its (nonzero) digits is 5419008, while the sum is 58.

The spelling of 168687001867 in words is "one hundred sixty-eight billion, six hundred eighty-seven million, one thousand, eight hundred sixty-seven".