13719905424 has 135 divisors (see below), whose sum is σ = 39484328403. Its totient is φ = 4447267776.

The previous prime is 13719905393. The next prime is 13719905447. The reversal of 13719905424 is 42450991731.

The square root of 13719905424 is 117132.

It is a perfect power (a square), and thus also a powerful number.

13719905424 is a `hidden beast` number, since 1 + 3 + 7 + 19 + 90 + 542 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 13719905424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 60439999 + ... + 60440225.

Almost surely, 2^13719905424 is an apocalyptic number.

13719905424 is the 117132-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13719905424

13719905424 is an abundant number, since it is smaller than the sum of its proper divisors (25764422979).

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

13719905424 is an equidigital number, since it uses as much as digits as its factorization.

13719905424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 13719905424 in words is "thirteen billion, seven hundred nineteen million, nine hundred five thousand, four hundred twenty-four".