13822743988 has 12 divisors (see below), whose sum is σ = 24192045220. Its totient is φ = 6910731072.

The previous prime is 13822743983. The next prime is 13822744043. The reversal of 13822743988 is 88934722831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8758713744 + 5064030244 = 93588^2 + 71162^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13822743983) 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, 109953 + ... + 199336.

Almost surely, 2^13822743988 is an apocalyptic number.

It is an amenable number.

13822743988 is a deficient number, since it is larger than the sum of its proper divisors (10369301232).

13822743988 is a wasteful number, since it uses less digits than its factorization.

13822743988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320466 (or 320464 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The spelling of 13822743988 in words is "thirteen billion, eight hundred twenty-two million, seven hundred forty-three thousand, nine hundred eighty-eight".