78021402170363 has 2 divisors, whose sum is σ = 78021402170364. Its totient is φ = 78021402170362.

The previous prime is 78021402170339. The next prime is 78021402170429. The reversal of 78021402170363 is 36307120412087.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78021402170363 - 2¹⁰ = 78021402169339 is a prime.

It is not a weakly prime, because it can be changed into another prime (78021402170863) 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 as a sum of consecutive naturals, namely, 39010701085181 + 39010701085182.

It is an arithmetic number, because the mean of its divisors is an integer number (39010701085182).

Almost surely, 2^{78021402170363} is an apocalyptic number.

78021402170363 is a deficient number, since it is larger than the sum of its proper divisors (1).

78021402170363 is an equidigital number, since it uses as much as digits as its factorization.

78021402170363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 78021402170363 in words is "seventy-eight trillion, twenty-one billion, four hundred two million, one hundred seventy thousand, three hundred sixty-three".