56785089469 has 2 divisors, whose sum is σ = 56785089470. Its totient is φ = 56785089468.

The previous prime is 56785089451. The next prime is 56785089521. The reversal of 56785089469 is 96498058765.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38156934244 + 18628155225 = 195338^2 + 136485^2 .

It is a cyclic number.

It is not a de Polignac number, because 56785089469 - 2¹¹ = 56785087421 is a prime.

It is a super-2 number, since 2×56785089469² (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 (56785089269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28392544734 + 28392544735.

It is an arithmetic number, because the mean of its divisors is an integer number (28392544735).

Almost surely, 2^56785089469 is an apocalyptic number.

It is an amenable number.

56785089469 is a deficient number, since it is larger than the sum of its proper divisors (1).

56785089469 is an equidigital number, since it uses as much as digits as its factorization.

56785089469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 130636800, while the sum is 67.

The spelling of 56785089469 in words is "fifty-six billion, seven hundred eighty-five million, eighty-nine thousand, four hundred sixty-nine".