13653493729 has 2 divisors, whose sum is σ = 13653493730. Its totient is φ = 13653493728.

The previous prime is 13653493709. The next prime is 13653493739. The reversal of 13653493729 is 92739435631.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8350304400 + 5303189329 = 91380^2 + 72823^2 .

It is an emirp because it is prime and its reverse (92739435631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13653493729 - 2⁵ = 13653493697 is a prime.

It is not a weakly prime, because it can be changed into another prime (13653493709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6826746864 + 6826746865.

It is an arithmetic number, because the mean of its divisors is an integer number (6826746865).

Almost surely, 2^13653493729 is an apocalyptic number.

It is an amenable number.

13653493729 is a deficient number, since it is larger than the sum of its proper divisors (1).

13653493729 is an equidigital number, since it uses as much as digits as its factorization.

13653493729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 52.

The spelling of 13653493729 in words is "thirteen billion, six hundred fifty-three million, four hundred ninety-three thousand, seven hundred twenty-nine".