3504220521344 has 16 divisors (see below), whose sum is σ = 6981064320120. Its totient is φ = 1752110260608.

The previous prime is 3504220521259. The next prime is 3504220521353. The reversal of 3504220521344 is 4431250224053.

It is a happy number.

3504220521344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×3504220521344² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13688361284 + ... + 13688361539.

Almost surely, 2^{3504220521344} is an apocalyptic number.

It is an amenable number.

3504220521344 is a deficient number, since it is larger than the sum of its proper divisors (3476843798776).

3504220521344 is an equidigital number, since it uses as much as digits as its factorization.

3504220521344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27376722837 (or 27376722825 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 3504220521344 its reverse (4431250224053), we get a palindrome (7935470745397).

The spelling of 3504220521344 in words is "three trillion, five hundred four billion, two hundred twenty million, five hundred twenty-one thousand, three hundred forty-four".