13663891084 has 12 divisors (see below), whose sum is σ = 23912658000. Its totient is φ = 6831703088.

The previous prime is 13663891081. The next prime is 13663891093. The reversal of 13663891084 is 48019836631.

It is not an unprimeable number, because it can be changed into a prime (13663891081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139857 + ... + 216535.

It is an arithmetic number, because the mean of its divisors is an integer number (1992721500).

Almost surely, 2^13663891084 is an apocalyptic number.

It is an amenable number.

13663891084 is a deficient number, since it is larger than the sum of its proper divisors (10248766916).

13663891084 is a wasteful number, since it uses less digits than its factorization.

13663891084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121232 (or 121230 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

It can be divided in two parts, 136638 and 91084, that added together give a palindrome (227722).

The spelling of 13663891084 in words is "thirteen billion, six hundred sixty-three million, eight hundred ninety-one thousand, eighty-four".