551306701728 has 288 divisors, whose sum is σ = 1697955727104. Its totient is φ = 169015934976.

The previous prime is 551306701723. The next prime is 551306701789. The reversal of 551306701728 is 827107603155.

It is a happy number.

551306701728 is a `hidden beast` number, since 5 + 513 + 0 + 67 + 0 + 1 + 72 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is not an unprimeable number, because it can be changed into a prime (551306701723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190301176 + ... + 190304072.

It is an arithmetic number, because the mean of its divisors is an integer number (5895679608).

Almost surely, 2^551306701728 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 551306701728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848977863552).

551306701728 is an abundant number, since it is smaller than the sum of its proper divisors (1146649025376).

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

551306701728 is a wasteful number, since it uses less digits than its factorization.

551306701728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804 (or 3793 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 551306701728 in words is "five hundred fifty-one billion, three hundred six million, seven hundred one thousand, seven hundred twenty-eight".