6430620773 has 2 divisors, whose sum is σ = 6430620774. Its totient is φ = 6430620772.

The previous prime is 6430620767. The next prime is 6430620809. The reversal of 6430620773 is 3770260346.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5400339169 + 1030281604 = 73487^2 + 32098^2 .

It is a cyclic number.

It is not a de Polignac number, because 6430620773 - 2²⁶ = 6363511909 is a prime.

It is a super-2 number, since 2×6430620773² = 82705767052278235058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6430622773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215310386 + 3215310387.

It is an arithmetic number, because the mean of its divisors is an integer number (3215310387).

Almost surely, 2^6430620773 is an apocalyptic number.

It is an amenable number.

6430620773 is a deficient number, since it is larger than the sum of its proper divisors (1).

6430620773 is an equidigital number, since it uses as much as digits as its factorization.

6430620773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 38.

The square root of 6430620773 is about 80191.1514632381. The cubic root of 6430620773 is about 1859.5918452513.

The spelling of 6430620773 in words is "six billion, four hundred thirty million, six hundred twenty thousand, seven hundred seventy-three".