5198720281 has 8 divisors (see below), whose sum is σ = 5226609920. Its totient is φ = 5170871952.

The previous prime is 5198720257. The next prime is 5198720287. The reversal of 5198720281 is 1820278915.

It is a happy number.

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 5198720281 - 2⁹ = 5198719769 is a prime.

It is a super-3 number, since 3×5198720281³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5198720287) 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, 260890 + ... + 280108.

It is an arithmetic number, because the mean of its divisors is an integer number (653326240).

Almost surely, 2^5198720281 is an apocalyptic number.

It is an amenable number.

5198720281 is a deficient number, since it is larger than the sum of its proper divisors (27889639).

5198720281 is a wasteful number, since it uses less digits than its factorization.

5198720281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20655.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 5198720281 is about 72102.1517085309. The cubic root of 5198720281 is about 1732.3360781701.

The spelling of 5198720281 in words is "five billion, one hundred ninety-eight million, seven hundred twenty thousand, two hundred eighty-one".