5172351228 has 432 divisors, whose sum is σ = 16665143040. Its totient is φ = 1385683200.

The previous prime is 5172351203. The next prime is 5172351241. The reversal of 5172351228 is 8221532715.

5172351228 is a `hidden beast` number, since 51 + 72 + 3 + 512 + 28 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 5172351192 and 5172351201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 126154888 + ... + 126154928.

It is an arithmetic number, because the mean of its divisors is an integer number (38576720).

Almost surely, 2^5172351228 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 5172351228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8332571520).

5172351228 is an abundant number, since it is smaller than the sum of its proper divisors (11492791812).

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

5172351228 is a wasteful number, since it uses less digits than its factorization.

5172351228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 99 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 5172351228 is about 71919.0602552620. The cubic root of 5172351228 is about 1729.4021822067.

The spelling of 5172351228 in words is "five billion, one hundred seventy-two million, three hundred fifty-one thousand, two hundred twenty-eight".