2528683466389 has 2 divisors, whose sum is σ = 2528683466390. Its totient is φ = 2528683466388.

The previous prime is 2528683466359. The next prime is 2528683466401. The reversal of 2528683466389 is 9836643868252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1892916443889 + 635767022500 = 1375833^2 + 797350^2 .

It is a cyclic number.

It is not a de Polignac number, because 2528683466389 - 2¹⁹ = 2528682942101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2528683466359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264341733194 + 1264341733195.

It is an arithmetic number, because the mean of its divisors is an integer number (1264341733195).

Almost surely, 2^{2528683466389} is an apocalyptic number.

It is an amenable number.

2528683466389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2528683466389 is an equidigital number, since it uses as much as digits as its factorization.

2528683466389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 716636160, while the sum is 70.

The spelling of 2528683466389 in words is "two trillion, five hundred twenty-eight billion, six hundred eighty-three million, four hundred sixty-six thousand, three hundred eighty-nine".