280552614680 has 128 divisors (see below), whose sum is σ = 701399865600. Its totient is φ = 100346867712.

The previous prime is 280552614647. The next prime is 280552614701. The reversal of 280552614680 is 86416255082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2112812 + ... + 2241668.

It is an arithmetic number, because the mean of its divisors is an integer number (5479686450).

Almost surely, 2^280552614680 is an apocalyptic number.

280552614680 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 280552614680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350699932800).

280552614680 is an abundant number, since it is smaller than the sum of its proper divisors (420847250920).

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

280552614680 is a wasteful number, since it uses less digits than its factorization.

280552614680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129013 (or 129009 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 280552614680 in words is "two hundred eighty billion, five hundred fifty-two million, six hundred fourteen thousand, six hundred eighty".