77340433747 has 2 divisors, whose sum is σ = 77340433748. Its totient is φ = 77340433746.

The previous prime is 77340433733. The next prime is 77340433771. The reversal of 77340433747 is 74733404377.

It is a weak prime.

It is an emirp because it is prime and its reverse (74733404377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77340433747 - 2⁷ = 77340433619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77340433747.

It is not a weakly prime, because it can be changed into another prime (77340433447) 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, 38670216873 + 38670216874.

It is an arithmetic number, because the mean of its divisors is an integer number (38670216874).

Almost surely, 2^77340433747 is an apocalyptic number.

77340433747 is a deficient number, since it is larger than the sum of its proper divisors (1).

77340433747 is an equidigital number, since it uses as much as digits as its factorization.

77340433747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4148928, while the sum is 49.

The spelling of 77340433747 in words is "seventy-seven billion, three hundred forty million, four hundred thirty-three thousand, seven hundred forty-seven".