14985990545 has 4 divisors (see below), whose sum is σ = 17983188660. Its totient is φ = 11988792432.

The previous prime is 14985990529. The next prime is 14985990563. The reversal of 14985990545 is 54509958941.

14985990545 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.

It can be written as a sum of positive squares in 2 ways, for example, as 8947457281 + 6038533264 = 94591^2 + 77708^2 .

It is a cyclic number.

It is not a de Polignac number, because 14985990545 - 2⁴ = 14985990529 is a prime.

It is a super-2 number, since 2×14985990545² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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, 1498599050 + ... + 1498599059.

It is an arithmetic number, because the mean of its divisors is an integer number (4495797165).

Almost surely, 2^14985990545 is an apocalyptic number.

It is an amenable number.

14985990545 is a deficient number, since it is larger than the sum of its proper divisors (2997198115).

14985990545 is an equidigital number, since it uses as much as digits as its factorization.

14985990545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997198114.

The product of its (nonzero) digits is 11664000, while the sum is 59.

The spelling of 14985990545 in words is "fourteen billion, nine hundred eighty-five million, nine hundred ninety thousand, five hundred forty-five".