80523905280 has 1152 divisors, whose sum is σ = 339414147072. Its totient is φ = 15804923904.

The previous prime is 80523905221. The next prime is 80523905291. The reversal of 80523905280 is 8250932508.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 345596044 + ... + 345596276.

It is an arithmetic number, because the mean of its divisors is an integer number (294630336).

Almost surely, 2^80523905280 is an apocalyptic number.

80523905280 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 80523905280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169707073536).

80523905280 is an abundant number, since it is smaller than the sum of its proper divisors (258890241792).

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

80523905280 is a wasteful number, since it uses less digits than its factorization.

80523905280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 42.

The spelling of 80523905280 in words is "eighty billion, five hundred twenty-three million, nine hundred five thousand, two hundred eighty".