280848380135664 has 160 divisors (see below), whose sum is σ = 800139620786688. Its totient is φ = 84176634240000.

The previous prime is 280848380135627. The next prime is 280848380135693. The reversal of 280848380135664 is 466531083848082.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 280848380135595 and 280848380135604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41504214 + ... + 47794314.

Almost surely, 2^{280848380135664} is an apocalyptic number.

280848380135664 is a gapful number since it is divisible by the number (24) 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 280848380135664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400069810393344).

280848380135664 is an abundant number, since it is smaller than the sum of its proper divisors (519291240651024).

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

280848380135664 is a wasteful number, since it uses less digits than its factorization.

280848380135664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6291047 (or 6291041 counting only the distinct ones).

The product of its (nonzero) digits is 212336640, while the sum is 66.

The spelling of 280848380135664 in words is "two hundred eighty trillion, eight hundred forty-eight billion, three hundred eighty million, one hundred thirty-five thousand, six hundred sixty-four".