28741025569 has 2 divisors, whose sum is σ = 28741025570. Its totient is φ = 28741025568.

The previous prime is 28741025491. The next prime is 28741025581. The reversal of 28741025569 is 96552014782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28121613025 + 619412544 = 167695^2 + 24888^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28741025569 is a prime.

It is a super-2 number, since 2×28741025569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28741025669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14370512784 + 14370512785.

It is an arithmetic number, because the mean of its divisors is an integer number (14370512785).

Almost surely, 2^28741025569 is an apocalyptic number.

It is an amenable number.

28741025569 is a deficient number, since it is larger than the sum of its proper divisors (1).

28741025569 is an equidigital number, since it uses as much as digits as its factorization.

28741025569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 28741025569 in words is "twenty-eight billion, seven hundred forty-one million, twenty-five thousand, five hundred sixty-nine".