30712385773 has 2 divisors, whose sum is σ = 30712385774. Its totient is φ = 30712385772.

The previous prime is 30712385771. The next prime is 30712385779. The reversal of 30712385773 is 37758321703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25170774409 + 5541611364 = 158653^2 + 74442^2 .

It is a cyclic number.

It is not a de Polignac number, because 30712385773 - 2¹ = 30712385771 is a prime.

Together with 30712385771, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30712385771) 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, 15356192886 + 15356192887.

It is an arithmetic number, because the mean of its divisors is an integer number (15356192887).

Almost surely, 2^30712385773 is an apocalyptic number.

It is an amenable number.

30712385773 is a deficient number, since it is larger than the sum of its proper divisors (1).

30712385773 is an equidigital number, since it uses as much as digits as its factorization.

30712385773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740880, while the sum is 46.

The spelling of 30712385773 in words is "thirty billion, seven hundred twelve million, three hundred eighty-five thousand, seven hundred seventy-three".