80438334750720 has 640 divisors, whose sum is σ = 289021712522400. Its totient is φ = 21402641498112.

The previous prime is 80438334750689. The next prime is 80438334750737. The reversal of 80438334750720 is 2705743383408.

80438334750720 is a `hidden beast` number, since 8 + 0 + 4 + 3 + 83 + 34 + 7 + 507 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (54).

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 39 ways as a sum of consecutive naturals, for example, 6197569191 + ... + 6197582169.

Almost surely, 2^{80438334750720} is an apocalyptic number.

80438334750720 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 80438334750720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144510856261200).

80438334750720 is an abundant number, since it is smaller than the sum of its proper divisors (208583377771680).

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

80438334750720 is an equidigital number, since it uses as much as digits as its factorization.

80438334750720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13493 (or 13456 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 54.

The spelling of 80438334750720 in words is "eighty trillion, four hundred thirty-eight billion, three hundred thirty-four million, seven hundred fifty thousand, seven hundred twenty".