5171236668 has 120 divisors (see below), whose sum is σ = 14743762880. Its totient is φ = 1570907520.

The previous prime is 5171236667. The next prime is 5171236723. The reversal of 5171236668 is 8666321715.

It is a super-4 number, since 4×5171236668⁴ (a number of 40 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5171236667) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 324978 + ... + 340518.

Almost surely, 2^5171236668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5171236668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7371881440).

5171236668 is an abundant number, since it is smaller than the sum of its proper divisors (9572526212).

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

5171236668 is a wasteful number, since it uses less digits than its factorization.

5171236668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15649 (or 15638 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 5171236668 is about 71911.3111269708. The cubic root of 5171236668 is about 1729.2779536643.

The spelling of 5171236668 in words is "five billion, one hundred seventy-one million, two hundred thirty-six thousand, six hundred sixty-eight".