80547028320 has 576 divisors, whose sum is σ = 300003056640. Its totient is φ = 18093588480.

The previous prime is 80547028319. The next prime is 80547028321. The reversal of 80547028320 is 2382074508.

It is an interprime number because it is at equal distance from previous prime (80547028319) and next prime (80547028321).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80547028321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51864664 + ... + 51866216.

It is an arithmetic number, because the mean of its divisors is an integer number (520838640).

Almost surely, 2^80547028320 is an apocalyptic number.

80547028320 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 80547028320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150001528320).

80547028320 is an abundant number, since it is smaller than the sum of its proper divisors (219456028320).

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

80547028320 is a wasteful number, since it uses less digits than its factorization.

80547028320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 80547028320 in words is "eighty billion, five hundred forty-seven million, twenty-eight thousand, three hundred twenty".