80784651268320 has 384 divisors, whose sum is σ = 260048540344320. Its totient is φ = 21076578631680.

The previous prime is 80784651268301. The next prime is 80784651268331. The reversal of 80784651268320 is 2386215648708.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1820148849 + ... + 1820193231.

It is an arithmetic number, because the mean of its divisors is an integer number (677209740480).

Almost surely, 2^{80784651268320} is an apocalyptic number.

80784651268320 is a gapful number since it is divisible by the number (80) 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 80784651268320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130024270172160).

80784651268320 is an abundant number, since it is smaller than the sum of its proper divisors (179263889076000).

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

80784651268320 is a wasteful number, since it uses less digits than its factorization.

80784651268320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44938 (or 44930 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 80784651268320 in words is "eighty trillion, seven hundred eighty-four billion, six hundred fifty-one million, two hundred sixty-eight thousand, three hundred twenty".