78216084488323 has 2 divisors, whose sum is σ = 78216084488324. Its totient is φ = 78216084488322.

The previous prime is 78216084488293. The next prime is 78216084488327. The reversal of 78216084488323 is 32388448061287.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78216084488323 - 2⁵ = 78216084488291 is a prime.

It is a super-2 number, since 2×78216084488323² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (78216084488327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39108042244161 + 39108042244162.

It is an arithmetic number, because the mean of its divisors is an integer number (39108042244162).

Almost surely, 2^{78216084488323} is an apocalyptic number.

78216084488323 is a deficient number, since it is larger than the sum of its proper divisors (1).

78216084488323 is an equidigital number, since it uses as much as digits as its factorization.

78216084488323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 99090432, while the sum is 64.

The spelling of 78216084488323 in words is "seventy-eight trillion, two hundred sixteen billion, eighty-four million, four hundred eighty-eight thousand, three hundred twenty-three".