280728468241 has 8 divisors (see below), whose sum is σ = 318234701120. Its totient is φ = 245495340432.

The previous prime is 280728468233. The next prime is 280728468277. The reversal of 280728468241 is 142864827082.

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

It is a cyclic number.

It is not a de Polignac number, because 280728468241 - 2³ = 280728468233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280728468221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568276005 + ... + 568276498.

It is an arithmetic number, because the mean of its divisors is an integer number (39779337640).

Almost surely, 2^280728468241 is an apocalyptic number.

It is an amenable number.

280728468241 is a deficient number, since it is larger than the sum of its proper divisors (37506232879).

280728468241 is a wasteful number, since it uses less digits than its factorization.

280728468241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136552535.

The product of its (nonzero) digits is 2752512, while the sum is 52.

The spelling of 280728468241 in words is "two hundred eighty billion, seven hundred twenty-eight million, four hundred sixty-eight thousand, two hundred forty-one".