280228466582813 has 4 divisors (see below), whose sum is σ = 320261104666080. Its totient is φ = 240195828499548.

The previous prime is 280228466582759. The next prime is 280228466582863. The reversal of 280228466582813 is 318285664822082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 280228466582813 - 2²⁴ = 280228449805597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 280228466582813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280228466582863) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20016319041623 + ... + 20016319041636.

It is an arithmetic number, because the mean of its divisors is an integer number (80065276166520).

Almost surely, 2^{280228466582813} is an apocalyptic number.

It is an amenable number.

280228466582813 is a deficient number, since it is larger than the sum of its proper divisors (40032638083267).

280228466582813 is an equidigital number, since it uses as much as digits as its factorization.

280228466582813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40032638083266.

The product of its (nonzero) digits is 141557760, while the sum is 65.

The spelling of 280228466582813 in words is "two hundred eighty trillion, two hundred twenty-eight billion, four hundred sixty-six million, five hundred eighty-two thousand, eight hundred thirteen".