211428452773 has 2 divisors, whose sum is σ = 211428452774. Its totient is φ = 211428452772.

The previous prime is 211428452747. The next prime is 211428452789. The reversal of 211428452773 is 377254824112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167904896644 + 43523556129 = 409762^2 + 208623^2 .

It is a cyclic number.

It is not a de Polignac number, because 211428452773 - 2³⁷ = 73989499301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211428456773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105714226386 + 105714226387.

It is an arithmetic number, because the mean of its divisors is an integer number (105714226387).

Almost surely, 2^211428452773 is an apocalyptic number.

It is an amenable number.

211428452773 is a deficient number, since it is larger than the sum of its proper divisors (1).

211428452773 is an equidigital number, since it uses as much as digits as its factorization.

211428452773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 752640, while the sum is 46.

The spelling of 211428452773 in words is "two hundred eleven billion, four hundred twenty-eight million, four hundred fifty-two thousand, seven hundred seventy-three".