51767618836168 has 8 divisors (see below), whose sum is σ = 97064285317830. Its totient is φ = 25883809418080.

The previous prime is 51767618836163. The next prime is 51767618836181. The reversal of 51767618836168 is 86163881676715.

51767618836168 is digitally balanced in base 5, 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., 42549241988484 + 9218376847684 = 6522978^2 + 3036178^2 .

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 51767618836168.

It is not an unprimeable number, because it can be changed into a prime (51767618836163) 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 as a sum of consecutive naturals, namely, 3235476177253 + ... + 3235476177268.

Almost surely, 2^{51767618836168} is an apocalyptic number.

It is an amenable number.

51767618836168 is a deficient number, since it is larger than the sum of its proper divisors (45296666481662).

51767618836168 is a wasteful number, since it uses less digits than its factorization.

51767618836168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6470952354527 (or 6470952354523 counting only the distinct ones).

The product of its digits is 487710720, while the sum is 73.

The spelling of 51767618836168 in words is "fifty-one trillion, seven hundred sixty-seven billion, six hundred eighteen million, eight hundred thirty-six thousand, one hundred sixty-eight".