280163424672 has 336 divisors, whose sum is σ = 872779561920. Its totient is φ = 88308734976.

The previous prime is 280163424659. The next prime is 280163424679. The reversal of 280163424672 is 276424361082.

It is a happy number.

280163424672 is a `hidden beast` number, since 2 + 8 + 0 + 1 + 634 + 2 + 4 + 6 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (280163424679) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 47749483 + ... + 47755349.

It is an arithmetic number, because the mean of its divisors is an integer number (2597558220).

Almost surely, 2^280163424672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280163424672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (436389780960).

280163424672 is an abundant number, since it is smaller than the sum of its proper divisors (592616137248).

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

280163424672 is an equidigital number, since it uses as much as digits as its factorization.

280163424672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6007 (or 5984 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 280163424672 in words is "two hundred eighty billion, one hundred sixty-three million, four hundred twenty-four thousand, six hundred seventy-two".