521444336054 has 16 divisors (see below), whose sum is σ = 811858459776. Its totient is φ = 250917782400.

The previous prime is 521444336053. The next prime is 521444336057. The reversal of 521444336054 is 450633444125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521444336053) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23221907 + ... + 23244350.

It is an arithmetic number, because the mean of its divisors is an integer number (50741153736).

Almost surely, 2^521444336054 is an apocalyptic number.

521444336054 is a deficient number, since it is larger than the sum of its proper divisors (290414123722).

521444336054 is a wasteful number, since it uses less digits than its factorization.

521444336054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46466471.

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 521444336054 in words is "five hundred twenty-one billion, four hundred forty-four million, three hundred thirty-six thousand, fifty-four".