77424347047 has 2 divisors, whose sum is σ = 77424347048. Its totient is φ = 77424347046.

The previous prime is 77424347041. The next prime is 77424347089. The reversal of 77424347047 is 74074342477.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77424347047 - 2¹⁹ = 77423822759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77424347041) 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, 38712173523 + 38712173524.

It is an arithmetic number, because the mean of its divisors is an integer number (38712173524).

Almost surely, 2^77424347047 is an apocalyptic number.

77424347047 is a deficient number, since it is larger than the sum of its proper divisors (1).

77424347047 is an equidigital number, since it uses as much as digits as its factorization.

77424347047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3687936, while the sum is 49.

The spelling of 77424347047 in words is "seventy-seven billion, four hundred twenty-four million, three hundred forty-seven thousand, forty-seven".