78853363554663 has 8 divisors (see below), whose sum is σ = 116819797858800. Its totient is φ = 52568909036424.

The previous prime is 78853363554593. The next prime is 78853363554683. The reversal of 78853363554663 is 36645536335887.

78853363554663 is a `hidden beast` number, since 7 + 8 + 8 + 5 + 3 + 3 + 6 + 3 + 554 + 6 + 63 = 666.

It is not a de Polignac number, because 78853363554663 - 2²¹ = 78853361457511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78853363554591 and 78853363554600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78853363554683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460247473208 + ... + 1460247473261.

It is an arithmetic number, because the mean of its divisors is an integer number (14602474732350).

Almost surely, 2^{78853363554663} is an apocalyptic number.

78853363554663 is a deficient number, since it is larger than the sum of its proper divisors (37966434304137).

78853363554663 is a wasteful number, since it uses less digits than its factorization.

78853363554663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920494946478 (or 2920494946472 counting only the distinct ones).

The product of its digits is 3919104000, while the sum is 72.

The spelling of 78853363554663 in words is "seventy-eight trillion, eight hundred fifty-three billion, three hundred sixty-three million, five hundred fifty-four thousand, six hundred sixty-three".