13405424444424 has 48 divisors (see below), whose sum is σ = 36306658400220. Its totient is φ = 4468437826560.

The previous prime is 13405424444393. The next prime is 13405424444491. The reversal of 13405424444424 is 42444442450431.

13405424444424 is a `hidden beast` number, since 1 + 3 + 4 + 0 + 542 + 4 + 44 + 44 + 24 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13361583622500 + 43840821924 = 3655350^2 + 209382^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13405424444424.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8809344 + ... + 10218384.

Almost surely, 2^{13405424444424} is an apocalyptic number.

It is an amenable number.

13405424444424 is an abundant number, since it is smaller than the sum of its proper divisors (22901233955796).

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

13405424444424 is a wasteful number, since it uses less digits than its factorization.

13405424444424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541190 (or 1541183 counting only the distinct ones).

The product of its (nonzero) digits is 3932160, while the sum is 45.

Adding to 13405424444424 its reverse (42444442450431), we get a palindrome (55849866894855).

The spelling of 13405424444424 in words is "thirteen trillion, four hundred five billion, four hundred twenty-four million, four hundred forty-four thousand, four hundred twenty-four".