14868631969 has 3 divisors (see below), whose sum is σ = 14868753907. Its totient is φ = 14868510032.

The previous prime is 14868631951. The next prime is 14868632011. The reversal of 14868631969 is 96913686841.

The square root of 14868631969 is 121937.

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., 2034461025 + 12834170944 = 45105^2 + 113288^2 .

It is not a de Polignac number, because 14868631969 - 2¹¹ = 14868629921 is a prime.

It is a super-2 number, since 2×14868631969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14868631909) 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, 60969 + ... + 182905.

Almost surely, 2^14868631969 is an apocalyptic number.

14868631969 is the 121937-th square number.

14868631969 is the 60969-th centered octagonal number.

It is an amenable number.

14868631969 is a deficient number, since it is larger than the sum of its proper divisors (121938).

14868631969 is an frugal number, since it uses more digits than its factorization.

14868631969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243874 (or 121937 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 61.

The spelling of 14868631969 in words is "fourteen billion, eight hundred sixty-eight million, six hundred thirty-one thousand, nine hundred sixty-nine".