28912653773 has 2 divisors, whose sum is σ = 28912653774. Its totient is φ = 28912653772.

The previous prime is 28912653751. The next prime is 28912653779. The reversal of 28912653773 is 37735621982.

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., 25926796324 + 2985857449 = 161018^2 + 54643^2 .

It is a cyclic number.

It is not a de Polignac number, because 28912653773 - 2⁶ = 28912653709 is a prime.

It is a super-2 number, since 2×28912653773² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28912653779) 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, 14456326886 + 14456326887.

It is an arithmetic number, because the mean of its divisors is an integer number (14456326887).

Almost surely, 2^28912653773 is an apocalyptic number.

It is an amenable number.

28912653773 is a deficient number, since it is larger than the sum of its proper divisors (1).

28912653773 is an equidigital number, since it uses as much as digits as its factorization.

28912653773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 53.

The spelling of 28912653773 in words is "twenty-eight billion, nine hundred twelve million, six hundred fifty-three thousand, seven hundred seventy-three".