77000430797 has 2 divisors, whose sum is σ = 77000430798. Its totient is φ = 77000430796.

The previous prime is 77000430721. The next prime is 77000430811. The reversal of 77000430797 is 79703400077.

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., 76962411241 + 38019556 = 277421^2 + 6166^2 .

It is a cyclic number.

It is not a de Polignac number, because 77000430797 - 2¹⁰ = 77000429773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77000430707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38500215398 + 38500215399.

It is an arithmetic number, because the mean of its divisors is an integer number (38500215399).

Almost surely, 2^77000430797 is an apocalyptic number.

It is an amenable number.

77000430797 is a deficient number, since it is larger than the sum of its proper divisors (1).

77000430797 is an equidigital number, since it uses as much as digits as its factorization.

77000430797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259308, while the sum is 44.

The spelling of 77000430797 in words is "seventy-seven billion, four hundred thirty thousand, seven hundred ninety-seven".