159893835187 has 2 divisors, whose sum is σ = 159893835188. Its totient is φ = 159893835186.

The previous prime is 159893835113. The next prime is 159893835349. The reversal of 159893835187 is 781538398951.

It is a weak prime.

It is an emirp because it is prime and its reverse (781538398951) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-159893835187 is a prime.

It is not a weakly prime, because it can be changed into another prime (159893835107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79946917593 + 79946917594.

It is an arithmetic number, because the mean of its divisors is an integer number (79946917594).

Almost surely, 2^159893835187 is an apocalyptic number.

159893835187 is a deficient number, since it is larger than the sum of its proper divisors (1).

159893835187 is an equidigital number, since it uses as much as digits as its factorization.

159893835187 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65318400, while the sum is 67.

The spelling of 159893835187 in words is "one hundred fifty-nine billion, eight hundred ninety-three million, eight hundred thirty-five thousand, one hundred eighty-seven".