14186921881768 has 8 divisors (see below), whose sum is σ = 26600478528330. Its totient is φ = 7093460940880.

The previous prime is 14186921881687. The next prime is 14186921881777. The reversal of 14186921881768 is 86718812968141.

It can be written as a sum of positive squares in only one way, i.e., 7232108590564 + 6954813291204 = 2689258^2 + 2637198^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 14186921881697 and 14186921881706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 886682617603 + ... + 886682617618.

Almost surely, 2^{14186921881768} is an apocalyptic number.

It is an amenable number.

14186921881768 is a deficient number, since it is larger than the sum of its proper divisors (12413556646562).

14186921881768 is a wasteful number, since it uses less digits than its factorization.

14186921881768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773365235227 (or 1773365235223 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 70.

The spelling of 14186921881768 in words is "fourteen trillion, one hundred eighty-six billion, nine hundred twenty-one million, eight hundred eighty-one thousand, seven hundred sixty-eight".