80928301440 has 512 divisors, whose sum is σ = 314722713600. Its totient is φ = 17266507776.

The previous prime is 80928301427. The next prime is 80928301589. The reversal of 80928301440 is 4410382908.

It is a Cunningham number, because it is equal to 284479²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29015566 + ... + 29018354.

It is an arithmetic number, because the mean of its divisors is an integer number (614692800).

Almost surely, 2^80928301440 is an apocalyptic number.

80928301440 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 80928301440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157361356800).

80928301440 is an abundant number, since it is smaller than the sum of its proper divisors (233794412160).

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

80928301440 is a wasteful number, since it uses less digits than its factorization.

80928301440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2962 (or 2950 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 80928301440 in words is "eighty billion, nine hundred twenty-eight million, three hundred one thousand, four hundred forty".