13049731853 has 2 divisors, whose sum is σ = 13049731854. Its totient is φ = 13049731852.

The previous prime is 13049731831. The next prime is 13049731859. The reversal of 13049731853 is 35813794031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11793525604 + 1256206249 = 108598^2 + 35443^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13049731853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13049731859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6524865926 + 6524865927.

It is an arithmetic number, because the mean of its divisors is an integer number (6524865927).

Almost surely, 2^13049731853 is an apocalyptic number.

It is an amenable number.

13049731853 is a deficient number, since it is larger than the sum of its proper divisors (1).

13049731853 is an equidigital number, since it uses as much as digits as its factorization.

13049731853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The spelling of 13049731853 in words is "thirteen billion, forty-nine million, seven hundred thirty-one thousand, eight hundred fifty-three".