77243000741 has 2 divisors, whose sum is σ = 77243000742. Its totient is φ = 77243000740.

The previous prime is 77243000717. The next prime is 77243000743. The reversal of 77243000741 is 14700034277.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65662012516 + 11580988225 = 256246^2 + 107615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77243000741 is a prime.

Together with 77243000743, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77243000743) 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, 38621500370 + 38621500371.

It is an arithmetic number, because the mean of its divisors is an integer number (38621500371).

Almost surely, 2^77243000741 is an apocalyptic number.

It is an amenable number.

77243000741 is a deficient number, since it is larger than the sum of its proper divisors (1).

77243000741 is an equidigital number, since it uses as much as digits as its factorization.

77243000741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 35.

The spelling of 77243000741 in words is "seventy-seven billion, two hundred forty-three million, seven hundred forty-one", and thus it is an aban number.