28444000511 has 2 divisors, whose sum is σ = 28444000512. Its totient is φ = 28444000510.

The previous prime is 28444000499. The next prime is 28444000537. The reversal of 28444000511 is 11500044482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28444000511 - 2³⁰ = 27370258687 is a prime.

It is a super-2 number, since 2×28444000511² (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 (28444000561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14222000255 + 14222000256.

It is an arithmetic number, because the mean of its divisors is an integer number (14222000256).

Almost surely, 2^28444000511 is an apocalyptic number.

28444000511 is a deficient number, since it is larger than the sum of its proper divisors (1).

28444000511 is an equidigital number, since it uses as much as digits as its factorization.

28444000511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 28444000511 its reverse (11500044482), we get a palindrome (39944044993).

The spelling of 28444000511 in words is "twenty-eight billion, four hundred forty-four million, five hundred eleven", and thus it is an aban number.