280771320060 has 576 divisors, whose sum is σ = 1119592212480. Its totient is φ = 57758400000.

The previous prime is 280771320059. The next prime is 280771320083. The reversal of 280771320060 is 60023177082.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 280771319997 and 280771320024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 29392285 + ... + 29401835.

It is an arithmetic number, because the mean of its divisors is an integer number (1943736480).

Almost surely, 2^280771320060 is an apocalyptic number.

280771320060 is a gapful number since it is divisible by the number (20) 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 280771320060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559796106240).

280771320060 is an abundant number, since it is smaller than the sum of its proper divisors (838820892420).

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

280771320060 is a wasteful number, since it uses less digits than its factorization.

280771320060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9695 (or 9680 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 280771320060 in words is "two hundred eighty billion, seven hundred seventy-one million, three hundred twenty thousand, sixty".