28747186011 has 24 divisors (see below), whose sum is σ = 44450724864. Its totient is φ = 18546566760.

The previous prime is 28747186003. The next prime is 28747186051. The reversal of 28747186011 is 11068174782.

28747186011 is a `hidden beast` number, since 28 + 7 + 4 + 7 + 18 + 601 + 1 = 666.

It is not a de Polignac number, because 28747186011 - 2³ = 28747186003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28747186051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1900551 + ... + 1915616.

It is an arithmetic number, because the mean of its divisors is an integer number (1852113536).

Almost surely, 2^28747186011 is an apocalyptic number.

28747186011 is a deficient number, since it is larger than the sum of its proper divisors (15703538853).

28747186011 is an equidigital number, since it uses as much as digits as its factorization.

28747186011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3816213 (or 3816201 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The spelling of 28747186011 in words is "twenty-eight billion, seven hundred forty-seven million, one hundred eighty-six thousand, eleven".