7128045075469 has 2 divisors, whose sum is σ = 7128045075470. Its totient is φ = 7128045075468.

The previous prime is 7128045075433. The next prime is 7128045075583. The reversal of 7128045075469 is 9645705408217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4964830676100 + 2163214399369 = 2228190^2 + 1470787^2 .

It is a cyclic number.

It is not a de Polignac number, because 7128045075469 - 2¹³ = 7128045067277 is a prime.

It is a super-2 number, since 2×7128045075469² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7128045072469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3564022537734 + 3564022537735.

It is an arithmetic number, because the mean of its divisors is an integer number (3564022537735).

Almost surely, 2^{7128045075469} is an apocalyptic number.

It is an amenable number.

7128045075469 is a deficient number, since it is larger than the sum of its proper divisors (1).

7128045075469 is an equidigital number, since it uses as much as digits as its factorization.

7128045075469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16934400, while the sum is 58.

The spelling of 7128045075469 in words is "seven trillion, one hundred twenty-eight billion, forty-five million, seventy-five thousand, four hundred sixty-nine".