13918547064808 has 8 divisors (see below), whose sum is σ = 26097275746530. Its totient is φ = 6959273532400.

The previous prime is 13918547064791. The next prime is 13918547064833. The reversal of 13918547064808 is 80846074581931.

13918547064808 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 only one way, i.e., 12339749788804 + 1578797276004 = 3512798^2 + 1256502^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 13918547064808.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 869909191543 + ... + 869909191558.

Almost surely, 2^{13918547064808} is an apocalyptic number.

It is an amenable number.

13918547064808 is a deficient number, since it is larger than the sum of its proper divisors (12178728681722).

13918547064808 is a wasteful number, since it uses less digits than its factorization.

13918547064808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739818383107 (or 1739818383103 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 13918547064808 in words is "thirteen trillion, nine hundred eighteen billion, five hundred forty-seven million, sixty-four thousand, eight hundred eight".