14781131812 has 12 divisors (see below), whose sum is σ = 25867923340. Its totient is φ = 7390296576.

The previous prime is 14781131809. The next prime is 14781131819. The reversal of 14781131812 is 21813118741.

It can be written as a sum of positive squares in 2 ways, for example, as 2892718656 + 11888413156 = 53784^2 + 109034^2 .

It is not an unprimeable number, because it can be changed into a prime (14781131819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105364 + ... + 201652.

Almost surely, 2^14781131812 is an apocalyptic number.

It is an amenable number.

14781131812 is a deficient number, since it is larger than the sum of its proper divisors (11086791528).

14781131812 is a wasteful number, since it uses less digits than its factorization.

14781131812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134670 (or 134668 counting only the distinct ones).

The product of its digits is 10752, while the sum is 37.

The spelling of 14781131812 in words is "fourteen billion, seven hundred eighty-one million, one hundred thirty-one thousand, eight hundred twelve".