280954808459081 has 8 divisors (see below), whose sum is σ = 281858851292928. Its totient is φ = 280050769800000.

The previous prime is 280954808459053. The next prime is 280954808459131. The reversal of 280954808459081 is 180954808459082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-280954808459081 is a prime.

It is a super-2 number, since 2×280954808459081² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 280954808458996 and 280954808459014.

It is not an unprimeable number, because it can be changed into a prime (280954808458081) 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 7 ways as a sum of consecutive naturals, for example, 189828401 + ... + 191302721.

It is an arithmetic number, because the mean of its divisors is an integer number (35232356411616).

Almost surely, 2^{280954808459081} is an apocalyptic number.

It is an amenable number.

280954808459081 is a deficient number, since it is larger than the sum of its proper divisors (904042833847).

280954808459081 is a wasteful number, since it uses less digits than its factorization.

280954808459081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087383.

The product of its (nonzero) digits is 265420800, while the sum is 71.

Subtracting from 280954808459081 its reverse (180954808459082), we obtain a palindrome (99999999999999).

The spelling of 280954808459081 in words is "two hundred eighty trillion, nine hundred fifty-four billion, eight hundred eight million, four hundred fifty-nine thousand, eighty-one".