13896749197 has 4 divisors (see below), whose sum is σ = 13928843740. Its totient is φ = 13864654656.

The previous prime is 13896749173. The next prime is 13896749219. The reversal of 13896749197 is 79194769831.

13896749197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2501400196 + 11395349001 = 50014^2 + 106749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13896749197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13896749147) 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 3 ways as a sum of consecutive naturals, for example, 16046622 + ... + 16047487.

It is an arithmetic number, because the mean of its divisors is an integer number (3482210935).

Almost surely, 2^13896749197 is an apocalyptic number.

It is an amenable number.

13896749197 is a deficient number, since it is larger than the sum of its proper divisors (32094543).

13896749197 is an equidigital number, since it uses as much as digits as its factorization.

13896749197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32094542.

The product of its digits is 20575296, while the sum is 64.

The spelling of 13896749197 in words is "thirteen billion, eight hundred ninety-six million, seven hundred forty-nine thousand, one hundred ninety-seven".