78088387808 has 48 divisors (see below), whose sum is σ = 162680265216. Its totient is φ = 36820586880.

The previous prime is 78088387807. The next prime is 78088387847. The reversal of 78088387808 is 80878388087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78088387807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694916 + ... + 799427.

It is an arithmetic number, because the mean of its divisors is an integer number (3389172192).

Almost surely, 2^78088387808 is an apocalyptic number.

It is an amenable number.

78088387808 is an abundant number, since it is smaller than the sum of its proper divisors (84591877408).

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

78088387808 is a wasteful number, since it uses less digits than its factorization.

78088387808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494447 (or 1494439 counting only the distinct ones).

The product of its (nonzero) digits is 38535168, while the sum is 65.

The spelling of 78088387808 in words is "seventy-eight billion, eighty-eight million, three hundred eighty-seven thousand, eight hundred eight".