78802136320 has 144 divisors (see below), whose sum is σ = 197346401280. Its totient is φ = 30091640832.

The previous prime is 78802136269. The next prime is 78802136351. The reversal of 78802136320 is 2363120887.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16984561 + ... + 16989199.

It is an arithmetic number, because the mean of its divisors is an integer number (1370461120).

Almost surely, 2^78802136320 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 78802136320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98673200640).

78802136320 is an abundant number, since it is smaller than the sum of its proper divisors (118544264960).

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

78802136320 is a wasteful number, since it uses less digits than its factorization.

78802136320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260 (or 5246 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 78802136320 in words is "seventy-eight billion, eight hundred two million, one hundred thirty-six thousand, three hundred twenty".