78388010896 has 160 divisors (see below), whose sum is σ = 174262457600. Its totient is φ = 34062612480.

The previous prime is 78388010849. The next prime is 78388010941. The reversal of 78388010896 is 69801088387.

It is a super-2 number, since 2×78388010896² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78388010896.

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, 160960765 + ... + 160961251.

It is an arithmetic number, because the mean of its divisors is an integer number (1089140360).

Almost surely, 2^78388010896 is an apocalyptic number.

78388010896 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78388010896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87131228800).

78388010896 is an abundant number, since it is smaller than the sum of its proper divisors (95874446704).

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

78388010896 is a wasteful number, since it uses less digits than its factorization.

78388010896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 58.

The spelling of 78388010896 in words is "seventy-eight billion, three hundred eighty-eight million, ten thousand, eight hundred ninety-six".