77884451645467 has 2 divisors, whose sum is σ = 77884451645468. Its totient is φ = 77884451645466.

The previous prime is 77884451645443. The next prime is 77884451645501. The reversal of 77884451645467 is 76454615448877.

It is a weak prime.

It is an emirp because it is prime and its reverse (76454615448877) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77884451645467 - 2¹¹ = 77884451643419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77884451645393 and 77884451645402.

It is not a weakly prime, because it can be changed into another prime (77884451645417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38942225822733 + 38942225822734.

It is an arithmetic number, because the mean of its divisors is an integer number (38942225822734).

Almost surely, 2^{77884451645467} is an apocalyptic number.

77884451645467 is a deficient number, since it is larger than the sum of its proper divisors (1).

77884451645467 is an equidigital number, since it uses as much as digits as its factorization.

77884451645467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5057740800, while the sum is 76.

The spelling of 77884451645467 in words is "seventy-seven trillion, eight hundred eighty-four billion, four hundred fifty-one million, six hundred forty-five thousand, four hundred sixty-seven".