77800238650741 has 2 divisors, whose sum is σ = 77800238650742. Its totient is φ = 77800238650740.

The previous prime is 77800238650709. The next prime is 77800238650759. The reversal of 77800238650741 is 14705683200877.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55344449178225 + 22455789472516 = 7439385^2 + 4738754^2 .

It is a cyclic number.

It is not a de Polignac number, because 77800238650741 - 2⁵ = 77800238650709 is a prime.

It is a super-2 number, since 2×77800238650741² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77800238650781) 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, 38900119325370 + 38900119325371.

It is an arithmetic number, because the mean of its divisors is an integer number (38900119325371).

Almost surely, 2^{77800238650741} is an apocalyptic number.

It is an amenable number.

77800238650741 is a deficient number, since it is larger than the sum of its proper divisors (1).

77800238650741 is an equidigital number, since it uses as much as digits as its factorization.

77800238650741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15805440, while the sum is 58.

The spelling of 77800238650741 in words is "seventy-seven trillion, eight hundred billion, two hundred thirty-eight million, six hundred fifty thousand, seven hundred forty-one".