28061115011 has 2 divisors, whose sum is σ = 28061115012. Its totient is φ = 28061115010.

The previous prime is 28061115007. The next prime is 28061115023. The reversal of 28061115011 is 11051116082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28061115011 - 2² = 28061115007 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (28061115031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14030557505 + 14030557506.

It is an arithmetic number, because the mean of its divisors is an integer number (14030557506).

Almost surely, 2^28061115011 is an apocalyptic number.

28061115011 is a deficient number, since it is larger than the sum of its proper divisors (1).

28061115011 is an equidigital number, since it uses as much as digits as its factorization.

28061115011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 26.

The spelling of 28061115011 in words is "twenty-eight billion, sixty-one million, one hundred fifteen thousand, eleven".