8139820326912 has 168 divisors, whose sum is σ = 23523143780136. Its totient is φ = 2712172363776.

The previous prime is 8139820326901. The next prime is 8139820326917. The reversal of 8139820326912 is 2196230289318.

8139820326912 is a `hidden beast` number, since 81 + 3 + 98 + 203 + 269 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8139820326917) 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 11 ways as a sum of consecutive naturals, for example, 192925083 + ... + 192967269.

It is an arithmetic number, because the mean of its divisors is an integer number (140018712977).

Almost surely, 2^{8139820326912} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8139820326912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11761571890068).

8139820326912 is an abundant number, since it is smaller than the sum of its proper divisors (15383323453224).

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

8139820326912 is a wasteful number, since it uses less digits than its factorization.

8139820326912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44836 (or 44809 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 8139820326912 in words is "eight trillion, one hundred thirty-nine billion, eight hundred twenty million, three hundred twenty-six thousand, nine hundred twelve".