14545435521 has 4 divisors (see below), whose sum is σ = 19393914032. Its totient is φ = 9696957012.

The previous prime is 14545435469. The next prime is 14545435537. The reversal of 14545435521 is 12553454541.

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: 12553454541 = 3 ⋅4184484847.

It is not a de Polignac number, because 14545435521 - 2⁷ = 14545435393 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 14545435521.

It is not an unprimeable number, because it can be changed into a prime (14545435571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2424239251 + ... + 2424239256.

It is an arithmetic number, because the mean of its divisors is an integer number (4848478508).

Almost surely, 2^14545435521 is an apocalyptic number.

It is an amenable number.

14545435521 is a deficient number, since it is larger than the sum of its proper divisors (4848478511).

14545435521 is an equidigital number, since it uses as much as digits as its factorization.

14545435521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4848478510.

The product of its digits is 240000, while the sum is 39.

The spelling of 14545435521 in words is "fourteen billion, five hundred forty-five million, four hundred thirty-five thousand, five hundred twenty-one".