5217718783 has 4 divisors (see below), whose sum is σ = 5218765048. Its totient is φ = 5216672520.

The previous prime is 5217718777. The next prime is 5217718811. The reversal of 5217718783 is 3878177125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5217718783 - 2²⁵ = 5184164351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5217718703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515616 + ... + 525637.

It is an arithmetic number, because the mean of its divisors is an integer number (1304691262).

Almost surely, 2^5217718783 is an apocalyptic number.

5217718783 is a deficient number, since it is larger than the sum of its proper divisors (1046265).

5217718783 is a wasteful number, since it uses less digits than its factorization.

5217718783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046264.

The product of its digits is 658560, while the sum is 49.

The square root of 5217718783 is about 72233.7786842139. The cubic root of 5217718783 is about 1734.4437622595.

The spelling of 5217718783 in words is "five billion, two hundred seventeen million, seven hundred eighteen thousand, seven hundred eighty-three".