28440461417 has 2 divisors, whose sum is σ = 28440461418. Its totient is φ = 28440461416.

The previous prime is 28440461411. The next prime is 28440461437. The reversal of 28440461417 is 71416404482.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23133193216 + 5307268201 = 152096^2 + 72851^2 .

It is a cyclic number.

It is not a de Polignac number, because 28440461417 - 2³⁰ = 27366719593 is a prime.

It is a super-2 number, since 2×28440461417² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28440461411) 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, 14220230708 + 14220230709.

It is an arithmetic number, because the mean of its divisors is an integer number (14220230709).

Almost surely, 2^28440461417 is an apocalyptic number.

It is an amenable number.

28440461417 is a deficient number, since it is larger than the sum of its proper divisors (1).

28440461417 is an equidigital number, since it uses as much as digits as its factorization.

28440461417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172032, while the sum is 41.

Adding to 28440461417 its reverse (71416404482), we get a palindrome (99856865899).

The spelling of 28440461417 in words is "twenty-eight billion, four hundred forty million, four hundred sixty-one thousand, four hundred seventeen".