14231778538 has 8 divisors (see below), whose sum is σ = 21358257732. Its totient is φ = 7112359296.

The previous prime is 14231778527. The next prime is 14231778571. The reversal of 14231778538 is 83587713241.

It is a happy number.

14231778538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13821999489 + 409779049 = 117567^2 + 20243^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 14231778491 and 14231778500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1759945 + ... + 1768012.

Almost surely, 2^14231778538 is an apocalyptic number.

14231778538 is a deficient number, since it is larger than the sum of its proper divisors (7126479194).

14231778538 is a wasteful number, since it uses less digits than its factorization.

14231778538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3529976.

The product of its digits is 1128960, while the sum is 49.

The spelling of 14231778538 in words is "fourteen billion, two hundred thirty-one million, seven hundred seventy-eight thousand, five hundred thirty-eight".