78856350768 has 160 divisors (see below), whose sum is σ = 243993758400. Its totient is φ = 24240052224.

The previous prime is 78856350763. The next prime is 78856350803. The reversal of 78856350768 is 86705365887.

78856350768 is a `hidden beast` number, since 7 + 8 + 8 + 5 + 63 + 507 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (78856350763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6334246 + ... + 6346682.

It is an arithmetic number, because the mean of its divisors is an integer number (1524960990).

Almost surely, 2^78856350768 is an apocalyptic number.

78856350768 is a gapful number since it is divisible by the number (78) 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 78856350768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121996879200).

78856350768 is an abundant number, since it is smaller than the sum of its proper divisors (165137407632).

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

78856350768 is a wasteful number, since it uses less digits than its factorization.

78856350768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13596 (or 13584 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 63.

The spelling of 78856350768 in words is "seventy-eight billion, eight hundred fifty-six million, three hundred fifty thousand, seven hundred sixty-eight".