280375483891968 has 576 divisors, whose sum is σ = 879860959488000. Its totient is φ = 87912783544320.

The previous prime is 280375483891847. The next prime is 280375483891981. The reversal of 280375483891968 is 869198384573082.

280375483891968 is a `hidden beast` number, since 2 + 8 + 0 + 3 + 7 + 5 + 48 + 389 + 196 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×280375483891968² (a number of 30 digits) contains 22 as substring.

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, 8316522280 + ... + 8316555992.

It is an arithmetic number, because the mean of its divisors is an integer number (1527536388000).

It is a 1-persistent number, because it is pandigital, but 2⋅280375483891968 = 560750967783936 is not.

Almost surely, 2^{280375483891968} 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 280375483891968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439930479744000).

280375483891968 is an abundant number, since it is smaller than the sum of its proper divisors (599485475596032).

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

280375483891968 is a wasteful number, since it uses less digits than its factorization.

280375483891968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34855 (or 34835 counting only the distinct ones).

The product of its (nonzero) digits is 5016453120, while the sum is 81.

The spelling of 280375483891968 in words is "two hundred eighty trillion, three hundred seventy-five billion, four hundred eighty-three million, eight hundred ninety-one thousand, nine hundred sixty-eight".