13406397796 has 81 divisors (see below), whose sum is σ = 27315229977. Its totient is φ = 5752248480.

The previous prime is 13406397773. The next prime is 13406397841. The reversal of 13406397796 is 69779360431.

It is a happy number.

The square root of 13406397796 is 115786.

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

13406397796 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2310724900 + 11095672896 = 48070^2 + 105336^2 .

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 48398410 + ... + 48398686.

Almost surely, 2^13406397796 is an apocalyptic number.

13406397796 is the 115786-th square number.

It is an amenable number.

13406397796 is an abundant number, since it is smaller than the sum of its proper divisors (13908832181).

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

13406397796 is a wasteful number, since it uses less digits than its factorization.

13406397796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 55.

The spelling of 13406397796 in words is "thirteen billion, four hundred six million, three hundred ninety-seven thousand, seven hundred ninety-six".