8158942000 has 320 divisors, whose sum is σ = 22980672000. Its totient is φ = 2770560000.

The previous prime is 8158941997. The next prime is 8158942003. The reversal of 8158942000 is 2498518.

It is an interprime number because it is at equal distance from previous prime (8158941997) and next prime (8158942003).

It is not an unprimeable number, because it can be changed into a prime (8158942003) 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 63 ways as a sum of consecutive naturals, for example, 54757926 + ... + 54758074.

It is an arithmetic number, because the mean of its divisors is an integer number (71814600).

Almost surely, 2^8158942000 is an apocalyptic number.

8158942000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8158942000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11490336000).

8158942000 is an abundant number, since it is smaller than the sum of its proper divisors (14821730000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8158942000 is a wasteful number, since it uses less digits than its factorization.

8158942000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 8158942000 is about 90326.8620068250. The cubic root of 8158942000 is about 2013.1584049978.

The spelling of 8158942000 in words is "eight billion, one hundred fifty-eight million, nine hundred forty-two thousand".