78618583048168 has 8 divisors (see below), whose sum is σ = 147409843215330. Its totient is φ = 39309291524080.

The previous prime is 78618583048091. The next prime is 78618583048193. The reversal of 78618583048168 is 86184038581687.

It can be written as a sum of positive squares in only one way, i.e., 52864561723204 + 25754021324964 = 7270802^2 + 5074842^2 .

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 78618583048168.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4913661440503 + ... + 4913661440518.

Almost surely, 2^{78618583048168} is an apocalyptic number.

It is an amenable number.

78618583048168 is a deficient number, since it is larger than the sum of its proper divisors (68791260167162).

78618583048168 is a wasteful number, since it uses less digits than its factorization.

78618583048168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9827322881027 (or 9827322881023 counting only the distinct ones).

The product of its (nonzero) digits is 495452160, while the sum is 73.

The spelling of 78618583048168 in words is "seventy-eight trillion, six hundred eighteen billion, five hundred eighty-three million, forty-eight thousand, one hundred sixty-eight".