428438712866113 has 2 divisors, whose sum is σ = 428438712866114. Its totient is φ = 428438712866112.

The previous prime is 428438712866093. The next prime is 428438712866249. The reversal of 428438712866113 is 311668217834824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 421138406025649 + 7300306840464 = 20521657^2 + 2701908^2 .

It is a cyclic number.

It is not a de Polignac number, because 428438712866113 - 2⁹ = 428438712865601 is a prime.

It is not a weakly prime, because it can be changed into another prime (428438712869113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214219356433056 + 214219356433057.

It is an arithmetic number, because the mean of its divisors is an integer number (214219356433057).

Almost surely, 2^{428438712866113} is an apocalyptic number.

It is an amenable number.

428438712866113 is a deficient number, since it is larger than the sum of its proper divisors (1).

428438712866113 is an equidigital number, since it uses as much as digits as its factorization.

428438712866113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74317824, while the sum is 64.

The spelling of 428438712866113 in words is "four hundred twenty-eight trillion, four hundred thirty-eight billion, seven hundred twelve million, eight hundred sixty-six thousand, one hundred thirteen".