78216113120263 has 2 divisors, whose sum is σ = 78216113120264. Its totient is φ = 78216113120262.

The previous prime is 78216113120237. The next prime is 78216113120311. The reversal of 78216113120263 is 36202131161287.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78216113120263 - 2⁹ = 78216113119751 is a prime.

It is a super-2 number, since 2×78216113120263² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78216113120963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39108056560131 + 39108056560132.

It is an arithmetic number, because the mean of its divisors is an integer number (39108056560132).

Almost surely, 2^{78216113120263} is an apocalyptic number.

78216113120263 is a deficient number, since it is larger than the sum of its proper divisors (1).

78216113120263 is an equidigital number, since it uses as much as digits as its factorization.

78216113120263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 78216113120263 in words is "seventy-eight trillion, two hundred sixteen billion, one hundred thirteen million, one hundred twenty thousand, two hundred sixty-three".