13409219772 has 36 divisors (see below), whose sum is σ = 36502877320. Its totient is φ = 4125913632.

The previous prime is 13409219753. The next prime is 13409219779. The reversal of 13409219772 is 27791290431.

13409219772 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 (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13409219779) 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 11 ways as a sum of consecutive naturals, for example, 14325622 + ... + 14326557.

Almost surely, 2^13409219772 is an apocalyptic number.

13409219772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13409219772 is an abundant number, since it is smaller than the sum of its proper divisors (23093657548).

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

13409219772 is a wasteful number, since it uses less digits than its factorization.

13409219772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28652202 (or 28652197 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 13409219772 in words is "thirteen billion, four hundred nine million, two hundred nineteen thousand, seven hundred seventy-two".