78807808268 has 48 divisors (see below), whose sum is σ = 162139172160. Its totient is φ = 32808416256.

The previous prime is 78807808193. The next prime is 78807808273. The reversal of 78807808268 is 86280870887.

It is a self number, because there is not a number n which added to its sum of digits gives 78807808268.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577568 + ... + 700856.

It is an arithmetic number, because the mean of its divisors is an integer number (3377899420).

Almost surely, 2^78807808268 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 78807808268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81069586080).

78807808268 is an abundant number, since it is smaller than the sum of its proper divisors (83331363892).

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

78807808268 is a wasteful number, since it uses less digits than its factorization.

78807808268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123954 (or 123952 counting only the distinct ones).

The product of its (nonzero) digits is 19267584, while the sum is 62.

The spelling of 78807808268 in words is "seventy-eight billion, eight hundred seven million, eight hundred eight thousand, two hundred sixty-eight".