78789226927 has 2 divisors, whose sum is σ = 78789226928. Its totient is φ = 78789226926.

The previous prime is 78789226921. The next prime is 78789226951. The reversal of 78789226927 is 72962298787.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78789226927 - 2⁷ = 78789226799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78789226921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39394613463 + 39394613464.

It is an arithmetic number, because the mean of its divisors is an integer number (39394613464).

Almost surely, 2^78789226927 is an apocalyptic number.

78789226927 is a deficient number, since it is larger than the sum of its proper divisors (1).

78789226927 is an equidigital number, since it uses as much as digits as its factorization.

78789226927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85349376, while the sum is 67.

The spelling of 78789226927 in words is "seventy-eight billion, seven hundred eighty-nine million, two hundred twenty-six thousand, nine hundred twenty-seven".