280749223112 has 36 divisors (see below), whose sum is σ = 544023386235. Its totient is φ = 135823918320.

The previous prime is 280749223099. The next prime is 280749223123. The reversal of 280749223112 is 211322947082.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 140374611556 + 140374611556 = 374666^2 + 374666^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=374666.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 280749223112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 46455563 + ... + 46461605.

Almost surely, 2^280749223112 is an apocalyptic number.

It is an amenable number.

280749223112 is a deficient number, since it is larger than the sum of its proper divisors (263274163123).

280749223112 is an frugal number, since it uses more digits than its factorization.

280749223112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12154 (or 6076 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 280749223112 in words is "two hundred eighty billion, seven hundred forty-nine million, two hundred twenty-three thousand, one hundred twelve".