78863263661263 has 2 divisors, whose sum is σ = 78863263661264. Its totient is φ = 78863263661262.

The previous prime is 78863263661219. The next prime is 78863263661383. The reversal of 78863263661263 is 36216636236887.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78863263661263 - 2²⁵ = 78863230106831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78863263668263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39431631830631 + 39431631830632.

It is an arithmetic number, because the mean of its divisors is an integer number (39431631830632).

Almost surely, 2^{78863263661263} is an apocalyptic number.

78863263661263 is a deficient number, since it is larger than the sum of its proper divisors (1).

78863263661263 is an equidigital number, since it uses as much as digits as its factorization.

78863263661263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376233984, while the sum is 67.

The spelling of 78863263661263 in words is "seventy-eight trillion, eight hundred sixty-three billion, two hundred sixty-three million, six hundred sixty-one thousand, two hundred sixty-three".