78759381888 has 320 divisors, whose sum is σ = 259909190640. Its totient is φ = 23473152000.

The previous prime is 78759381871. The next prime is 78759381893. The reversal of 78759381888 is 88818395787.

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 polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6951268 + ... + 6962588.

Almost surely, 2^78759381888 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 78759381888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129954595320).

78759381888 is an abundant number, since it is smaller than the sum of its proper divisors (181149808752).

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

78759381888 is a wasteful number, since it uses less digits than its factorization.

78759381888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11419 (or 11398 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 72.

The spelling of 78759381888 in words is "seventy-eight billion, seven hundred fifty-nine million, three hundred eighty-one thousand, eight hundred eighty-eight".