78885806000 has 80 divisors (see below), whose sum is σ = 191916892128. Its totient is φ = 31360608000.

The previous prime is 78885805903. The next prime is 78885806017. The reversal of 78885806000 is 60858887.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 78885806000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205010 + ... + 446990.

Almost surely, 2^78885806000 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 78885806000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95958446064).

78885806000 is an abundant number, since it is smaller than the sum of its proper divisors (113031086128).

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

78885806000 is a wasteful number, since it uses less digits than its factorization.

78885806000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242167 (or 242151 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 50.

The spelling of 78885806000 in words is "seventy-eight billion, eight hundred eighty-five million, eight hundred six thousand".