78838888883927 has 2 divisors, whose sum is σ = 78838888883928. Its totient is φ = 78838888883926.

The previous prime is 78838888883837. The next prime is 78838888883941. The reversal of 78838888883927 is 72938888883887.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78838888883927 - 2³⁴ = 78821709014743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78838888883927.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78838888883987) 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, 39419444441963 + 39419444441964.

It is an arithmetic number, because the mean of its divisors is an integer number (39419444441964).

Almost surely, 2^{78838888883927} is an apocalyptic number.

78838888883927 is a deficient number, since it is larger than the sum of its proper divisors (1).

78838888883927 is an equidigital number, since it uses as much as digits as its factorization.

78838888883927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 133177540608, while the sum is 95.

The spelling of 78838888883927 in words is "seventy-eight trillion, eight hundred thirty-eight billion, eight hundred eighty-eight million, eight hundred eighty-three thousand, nine hundred twenty-seven".