14663993523 has 4 divisors (see below), whose sum is σ = 19551991368. Its totient is φ = 9775995680.

The previous prime is 14663993497. The next prime is 14663993537. The reversal of 14663993523 is 32539936641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32539936641 = 3 ⋅10846645547.

It is a cyclic number.

It is not a de Polignac number, because 14663993523 - 2⁹ = 14663993011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (14663993423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2443998918 + ... + 2443998923.

It is an arithmetic number, because the mean of its divisors is an integer number (4887997842).

Almost surely, 2^14663993523 is an apocalyptic number.

14663993523 is a deficient number, since it is larger than the sum of its proper divisors (4887997845).

14663993523 is an equidigital number, since it uses as much as digits as its factorization.

14663993523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4887997844.

The product of its digits is 3149280, while the sum is 51.

The spelling of 14663993523 in words is "fourteen billion, six hundred sixty-three million, nine hundred ninety-three thousand, five hundred twenty-three".