52171451718 has 16 divisors (see below), whose sum is σ = 104425796160. Its totient is φ = 17376668456.

The previous prime is 52171451713. The next prime is 52171451741. The reversal of 52171451718 is 81715417125.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 52171451718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52171451713) 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, 3445680 + ... + 3460787.

It is an arithmetic number, because the mean of its divisors is an integer number (6526612260).

Almost surely, 2^52171451718 is an apocalyptic number.

52171451718 is an abundant number, since it is smaller than the sum of its proper divisors (52254344442).

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

52171451718 is a wasteful number, since it uses less digits than its factorization.

52171451718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6907731.

The product of its digits is 78400, while the sum is 42.

The spelling of 52171451718 in words is "fifty-two billion, one hundred seventy-one million, four hundred fifty-one thousand, seven hundred eighteen".