14815056985 has 4 divisors (see below), whose sum is σ = 17778068388. Its totient is φ = 11852045584.

The previous prime is 14815056967. The next prime is 14815056989. The reversal of 14815056985 is 58965051841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58965051841 = 77983 ⋅756127.

It can be written as a sum of positive squares in 2 ways, for example, as 5543100304 + 9271956681 = 74452^2 + 96291^2 .

It is a cyclic number.

It is not a de Polignac number, because 14815056985 - 2¹⁷ = 14814925913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14815056989) 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, 1481505694 + ... + 1481505703.

It is an arithmetic number, because the mean of its divisors is an integer number (4444517097).

Almost surely, 2^14815056985 is an apocalyptic number.

It is an amenable number.

14815056985 is a deficient number, since it is larger than the sum of its proper divisors (2963011403).

14815056985 is an equidigital number, since it uses as much as digits as its factorization.

14815056985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963011402.

The product of its (nonzero) digits is 1728000, while the sum is 52.

The spelling of 14815056985 in words is "fourteen billion, eight hundred fifteen million, fifty-six thousand, nine hundred eighty-five".