158843615987 has 16 divisors (see below), whose sum is σ = 183594677760. Its totient is φ = 134611612992.

The previous prime is 158843615971. The next prime is 158843615999. The reversal of 158843615987 is 789516348851.

It is not a de Polignac number, because 158843615987 - 2⁴ = 158843615971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158843615927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268343 + ... + 624255.

It is an arithmetic number, because the mean of its divisors is an integer number (11474667360).

Almost surely, 2^158843615987 is an apocalyptic number.

158843615987 is a deficient number, since it is larger than the sum of its proper divisors (24751061773).

158843615987 is a wasteful number, since it uses less digits than its factorization.

158843615987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356642.

The product of its digits is 58060800, while the sum is 65.

The spelling of 158843615987 in words is "one hundred fifty-eight billion, eight hundred forty-three million, six hundred fifteen thousand, nine hundred eighty-seven".