521341818106 has 16 divisors (see below), whose sum is σ = 787726735200. Its totient is φ = 258769965168.

The previous prime is 521341818103. The next prime is 521341818113. The reversal of 521341818106 is 601818143125.

It is not an unprimeable number, because it can be changed into a prime (521341818103) 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, 650821 + ... + 1210888.

It is an arithmetic number, because the mean of its divisors is an integer number (49232920950).

Almost surely, 2^521341818106 is an apocalyptic number.

521341818106 is a deficient number, since it is larger than the sum of its proper divisors (266384917094).

521341818106 is a wasteful number, since it uses less digits than its factorization.

521341818106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862733.

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 521341818106 in words is "five hundred twenty-one billion, three hundred forty-one million, eight hundred eighteen thousand, one hundred six".