77000007793 has 2 divisors, whose sum is σ = 77000007794. Its totient is φ = 77000007792.

The previous prime is 77000007737. The next prime is 77000007827. The reversal of 77000007793 is 39770000077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52616560689 + 24383447104 = 229383^2 + 156152^2 .

It is a cyclic number.

It is not a de Polignac number, because 77000007793 - 2²¹ = 76997910641 is a prime.

It is not a weakly prime, because it can be changed into another prime (77000007703) 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, 38500003896 + 38500003897.

It is an arithmetic number, because the mean of its divisors is an integer number (38500003897).

Almost surely, 2^77000007793 is an apocalyptic number.

It is an amenable number.

77000007793 is a deficient number, since it is larger than the sum of its proper divisors (1).

77000007793 is an equidigital number, since it uses as much as digits as its factorization.

77000007793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64827, while the sum is 40.

The spelling of 77000007793 in words is "seventy-seven billion, seven thousand, seven hundred ninety-three".