78533168204371 has 2 divisors, whose sum is σ = 78533168204372. Its totient is φ = 78533168204370.

The previous prime is 78533168204299. The next prime is 78533168204453. The reversal of 78533168204371 is 17340286133587.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78533168204371 - 2¹⁹ = 78533167680083 is a prime.

It is not a weakly prime, because it can be changed into another prime (78533168204671) by changing a digit.

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, 39266584102185 + 39266584102186.

It is an arithmetic number, because the mean of its divisors is an integer number (39266584102186).

Almost surely, 2^{78533168204371} is an apocalyptic number.

78533168204371 is a deficient number, since it is larger than the sum of its proper divisors (1).

78533168204371 is an equidigital number, since it uses as much as digits as its factorization.

78533168204371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20321280, while the sum is 58.

The spelling of 78533168204371 in words is "seventy-eight trillion, five hundred thirty-three billion, one hundred sixty-eight million, two hundred four thousand, three hundred seventy-one".