78884474880 has 416 divisors, whose sum is σ = 264208896000. Its totient is φ = 20071710720.

The previous prime is 78884474869. The next prime is 78884474899. The reversal of 78884474880 is 8847448887.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158084871 + ... + 158085369.

Almost surely, 2^78884474880 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 78884474880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132104448000).

78884474880 is an abundant number, since it is smaller than the sum of its proper divisors (185324421120).

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

78884474880 is a wasteful number, since it uses less digits than its factorization.

78884474880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 102760448, while the sum is 66.

The spelling of 78884474880 in words is "seventy-eight billion, eight hundred eighty-four million, four hundred seventy-four thousand, eight hundred eighty".