15323663453 has 4 divisors (see below), whose sum is σ = 17512758240. Its totient is φ = 13134568668.

The previous prime is 15323663389. The next prime is 15323663489. The reversal of 15323663453 is 35436632351.

15323663453 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35436632351 = 271 ⋅130762481.

It is a cyclic number.

It is not a de Polignac number, because 15323663453 - 2⁶ = 15323663389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15323663453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15323663353) 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, 1094547383 + ... + 1094547396.

It is an arithmetic number, because the mean of its divisors is an integer number (4378189560).

Almost surely, 2^15323663453 is an apocalyptic number.

It is an amenable number.

15323663453 is a deficient number, since it is larger than the sum of its proper divisors (2189094787).

15323663453 is an equidigital number, since it uses as much as digits as its factorization.

15323663453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189094786.

The product of its digits is 583200, while the sum is 41.

The spelling of 15323663453 in words is "fifteen billion, three hundred twenty-three million, six hundred sixty-three thousand, four hundred fifty-three".