78446148367 has 2 divisors, whose sum is σ = 78446148368. Its totient is φ = 78446148366.

The previous prime is 78446148299. The next prime is 78446148377. The reversal of 78446148367 is 76384164487.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (76384164487) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 78446148367 - 2⁷ = 78446148239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78446148377) 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, 39223074183 + 39223074184.

It is an arithmetic number, because the mean of its divisors is an integer number (39223074184).

Almost surely, 2^78446148367 is an apocalyptic number.

78446148367 is a deficient number, since it is larger than the sum of its proper divisors (1).

78446148367 is an equidigital number, since it uses as much as digits as its factorization.

78446148367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21676032, while the sum is 58.

The spelling of 78446148367 in words is "seventy-eight billion, four hundred forty-six million, one hundred forty-eight thousand, three hundred sixty-seven".