77307307663 has 2 divisors, whose sum is σ = 77307307664. Its totient is φ = 77307307662.

The previous prime is 77307307631. The next prime is 77307307681. The reversal of 77307307663 is 36670370377.

It is a strong prime.

It is an emirp because it is prime and its reverse (36670370377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77307307663 - 2⁵ = 77307307631 is a prime.

It is a super-3 number, since 3×77307307663³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77307307603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38653653831 + 38653653832.

It is an arithmetic number, because the mean of its divisors is an integer number (38653653832).

Almost surely, 2^77307307663 is an apocalyptic number.

77307307663 is a deficient number, since it is larger than the sum of its proper divisors (1).

77307307663 is an equidigital number, since it uses as much as digits as its factorization.

77307307663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2333772, while the sum is 49.

The spelling of 77307307663 in words is "seventy-seven billion, three hundred seven million, three hundred seven thousand, six hundred sixty-three".