5217686268 has 12 divisors (see below), whose sum is σ = 12174601320. Its totient is φ = 1739228752.

The previous prime is 5217686267. The next prime is 5217686329. The reversal of 5217686268 is 8626867125.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 5217686268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5217686267) 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, 217403583 + ... + 217403606.

It is an arithmetic number, because the mean of its divisors is an integer number (1014550110).

Almost surely, 2^5217686268 is an apocalyptic number.

It is an amenable number.

5217686268 is an abundant number, since it is smaller than the sum of its proper divisors (6956915052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5217686268 is a wasteful number, since it uses less digits than its factorization.

5217686268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434807196 (or 434807194 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 51.

The square root of 5217686268 is about 72233.5536160308. The cubic root of 5217686268 is about 1734.4401594362.

The spelling of 5217686268 in words is "five billion, two hundred seventeen million, six hundred eighty-six thousand, two hundred sixty-eight".