158319946987 has 8 divisors (see below), whose sum is σ = 162089929152. Its totient is φ = 154587854400.

The previous prime is 158319946963. The next prime is 158319946997. The reversal of 158319946987 is 789649913851.

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 158319946987 - 2¹⁵ = 158319914219 is a prime.

It is a super-2 number, since 2×158319946987² (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 (158319946997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9463939 + ... + 9480652.

It is an arithmetic number, because the mean of its divisors is an integer number (20261241144).

Almost surely, 2^158319946987 is an apocalyptic number.

158319946987 is a deficient number, since it is larger than the sum of its proper divisors (3769982165).

158319946987 is a wasteful number, since it uses less digits than its factorization.

158319946987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18944789.

The product of its digits is 117573120, while the sum is 70.

The spelling of 158319946987 in words is "one hundred fifty-eight billion, three hundred nineteen million, nine hundred forty-six thousand, nine hundred eighty-seven".