5218281873 has 28 divisors (see below), whose sum is σ = 8941544448. Its totient is φ = 2981872440.

The previous prime is 5218281839. The next prime is 5218281881. The reversal of 5218281873 is 3781828125.

It is not a de Polignac number, because 5218281873 - 2¹⁴ = 5218265489 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (5218281833) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 506193 + ... + 516398.

Almost surely, 2^5218281873 is an apocalyptic number.

It is an amenable number.

5218281873 is a deficient number, since it is larger than the sum of its proper divisors (3723262575).

5218281873 is an equidigital number, since it uses as much as digits as its factorization.

5218281873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022616 (or 1022601 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 5218281873 is about 72237.6762707661. The cubic root of 5218281873 is about 1734.5061530506.

The spelling of 5218281873 in words is "five billion, two hundred eighteen million, two hundred eighty-one thousand, eight hundred seventy-three".