23171537284 has 81 divisors (see below), whose sum is σ = 48113051511. Its totient is φ = 9736119120.

The previous prime is 23171537281. The next prime is 23171537293. The reversal of 23171537284 is 48273517132.

The square root of 23171537284 is 152222.

It is a perfect power (a square), and thus also a powerful number.

It is a self number, because there is not a number n which added to its sum of digits gives 23171537284.

It is not an unprimeable number, because it can be changed into a prime (23171537281) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 176881899 + ... + 176882029.

Almost surely, 2^23171537284 is an apocalyptic number.

23171537284 is the 152222-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23171537284

23171537284 is an abundant number, since it is smaller than the sum of its proper divisors (24941514227).

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

23171537284 is an equidigital number, since it uses as much as digits as its factorization.

23171537284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 223 counting only the distinct ones).

The product of its digits is 282240, while the sum is 43.

The spelling of 23171537284 in words is "twenty-three billion, one hundred seventy-one million, five hundred thirty-seven thousand, two hundred eighty-four".