78488535888 has 120 divisors (see below), whose sum is σ = 251102529600. Its totient is φ = 22419597312.

The previous prime is 78488535871. The next prime is 78488535929. The reversal of 78488535888 is 88853588487.

78488535888 is a `hidden beast` number, since 7 + 8 + 4 + 8 + 8 + 535 + 8 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5455168 + ... + 5469536.

It is an arithmetic number, because the mean of its divisors is an integer number (2092521080).

Almost surely, 2^78488535888 is an apocalyptic number.

It is an amenable number.

78488535888 is an abundant number, since it is smaller than the sum of its proper divisors (172613993712).

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

78488535888 is a wasteful number, since it uses less digits than its factorization.

78488535888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19809 (or 19800 counting only the distinct ones).

The product of its digits is 550502400, while the sum is 72.

The spelling of 78488535888 in words is "seventy-eight billion, four hundred eighty-eight million, five hundred thirty-five thousand, eight hundred eighty-eight".