14445490985 has 4 divisors (see below), whose sum is σ = 17334589188. Its totient is φ = 11556392784.

The previous prime is 14445490973. The next prime is 14445490987. The reversal of 14445490985 is 58909454441.

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 2668032409 + 11777458576 = 51653^2 + 108524^2 .

It is a cyclic number.

It is not a de Polignac number, because 14445490985 - 2⁸ = 14445490729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14445490987) 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, 1444549094 + ... + 1444549103.

It is an arithmetic number, because the mean of its divisors is an integer number (4333647297).

Almost surely, 2^14445490985 is an apocalyptic number.

It is an amenable number.

14445490985 is a deficient number, since it is larger than the sum of its proper divisors (2889098203).

14445490985 is an equidigital number, since it uses as much as digits as its factorization.

14445490985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889098202.

The product of its (nonzero) digits is 4147200, while the sum is 53.

The spelling of 14445490985 in words is "fourteen billion, four hundred forty-five million, four hundred ninety thousand, nine hundred eighty-five".