8193318459942 has 192 divisors, whose sum is σ = 21517900185600. Its totient is φ = 2033412638400.

The previous prime is 8193318459871. The next prime is 8193318459943. The reversal of 8193318459942 is 2499548133918.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8193318459943) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12116659 + ... + 12774977.

It is an arithmetic number, because the mean of its divisors is an integer number (112072396800).

Almost surely, 2^{8193318459942} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8193318459942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10758950092800).

8193318459942 is an abundant number, since it is smaller than the sum of its proper divisors (13324581725658).

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

8193318459942 is a wasteful number, since it uses less digits than its factorization.

8193318459942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658463 (or 658452 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 66.

The spelling of 8193318459942 in words is "eight trillion, one hundred ninety-three billion, three hundred eighteen million, four hundred fifty-nine thousand, nine hundred forty-two".