521142226711446 has 64 divisors (see below), whose sum is σ = 1058000875200000. Its totient is φ = 171112483872000.

The previous prime is 521142226711417. The next prime is 521142226711501. The reversal of 521142226711446 is 644117622241125.

It is a super-3 number, since 3×521142226711446³ (a number of 45 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 521142226711395 and 521142226711404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1216699930 + ... + 1217128178.

It is an arithmetic number, because the mean of its divisors is an integer number (16531263675000).

Almost surely, 2^{521142226711446} is an apocalyptic number.

521142226711446 is an abundant number, since it is smaller than the sum of its proper divisors (536858648488554).

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

521142226711446 is a wasteful number, since it uses less digits than its factorization.

521142226711446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438645.

The product of its digits is 1290240, while the sum is 48.

The spelling of 521142226711446 in words is "five hundred twenty-one trillion, one hundred forty-two billion, two hundred twenty-six million, seven hundred eleven thousand, four hundred forty-six".