2028512464469 has 2 divisors, whose sum is σ = 2028512464470. Its totient is φ = 2028512464468.

The previous prime is 2028512464457. The next prime is 2028512464471. The reversal of 2028512464469 is 9644642158202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2028237402244 + 275062225 = 1424162^2 + 16585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2028512464469 - 2⁸ = 2028512464213 is a prime.

It is a super-2 number, since 2×2028512464469² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 2028512464471, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2028512464469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2028512364469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014256232234 + 1014256232235.

It is an arithmetic number, because the mean of its divisors is an integer number (1014256232235).

Almost surely, 2^{2028512464469} is an apocalyptic number.

It is an amenable number.

2028512464469 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028512464469 is an equidigital number, since it uses as much as digits as its factorization.

2028512464469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6635520, while the sum is 53.

The spelling of 2028512464469 in words is "two trillion, twenty-eight billion, five hundred twelve million, four hundred sixty-four thousand, four hundred sixty-nine".