28551540011 has 2 divisors, whose sum is σ = 28551540012. Its totient is φ = 28551540010.

The previous prime is 28551540007. The next prime is 28551540037. The reversal of 28551540011 is 11004515582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28551540011 - 2² = 28551540007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28551540011.

It is not a weakly prime, because it can be changed into another prime (28551540041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14275770005 + 14275770006.

It is an arithmetic number, because the mean of its divisors is an integer number (14275770006).

Almost surely, 2^28551540011 is an apocalyptic number.

28551540011 is a deficient number, since it is larger than the sum of its proper divisors (1).

28551540011 is an equidigital number, since it uses as much as digits as its factorization.

28551540011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8000, while the sum is 32.

The spelling of 28551540011 in words is "twenty-eight billion, five hundred fifty-one million, five hundred forty thousand, eleven".