14679018649 has 3 divisors (see below), whose sum is σ = 14679139807. Its totient is φ = 14678897492.

The previous prime is 14679018647. The next prime is 14679018749. The reversal of 14679018649 is 94681097641.

The square root of 14679018649 is 121157.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 2105433225 + 12573585424 = 45885^2 + 112132^2 .

It is not a de Polignac number, because 14679018649 - 2¹ = 14679018647 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 14679018649.

It is not an unprimeable number, because it can be changed into a prime (14679018643) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 60579 + ... + 181735.

Almost surely, 2^14679018649 is an apocalyptic number.

14679018649 is the 121157-th square number.

14679018649 is the 60579-th centered octagonal number.

It is an amenable number.

14679018649 is a deficient number, since it is larger than the sum of its proper divisors (121158).

14679018649 is an frugal number, since it uses more digits than its factorization.

14679018649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242314 (or 121157 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 14679018649 in words is "fourteen billion, six hundred seventy-nine million, eighteen thousand, six hundred forty-nine".