77434105106663 has 2 divisors, whose sum is σ = 77434105106664. Its totient is φ = 77434105106662.

The previous prime is 77434105106627. The next prime is 77434105106749. The reversal of 77434105106663 is 36660150143477.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77434105106663 - 2²⁴ = 77434088329447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77434105106263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38717052553331 + 38717052553332.

It is an arithmetic number, because the mean of its divisors is an integer number (38717052553332).

Almost surely, 2^{77434105106663} is an apocalyptic number.

77434105106663 is a deficient number, since it is larger than the sum of its proper divisors (1).

77434105106663 is an equidigital number, since it uses as much as digits as its factorization.

77434105106663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7620480, while the sum is 53.

The spelling of 77434105106663 in words is "seventy-seven trillion, four hundred thirty-four billion, one hundred five million, one hundred six thousand, six hundred sixty-three".