28186151139 has 12 divisors (see below), whose sum is σ = 40864683600. Its totient is φ = 18720911664.

The previous prime is 28186151137. The next prime is 28186151143. The reversal of 28186151139 is 93115168182.

28186151139 is a `hidden beast` number, since 2 + 8 + 18 + 615 + 1 + 13 + 9 = 666.

It is not a de Polignac number, because 28186151139 - 2¹ = 28186151137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28186151094 and 28186151103.

It is not an unprimeable number, because it can be changed into a prime (28186151137) 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 in 11 ways as a sum of consecutive naturals, for example, 5818759 + ... + 5823600.

It is an arithmetic number, because the mean of its divisors is an integer number (3405390300).

Almost surely, 2^28186151139 is an apocalyptic number.

28186151139 is a deficient number, since it is larger than the sum of its proper divisors (12678532461).

28186151139 is a wasteful number, since it uses less digits than its factorization.

28186151139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11642634 (or 11642631 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The spelling of 28186151139 in words is "twenty-eight billion, one hundred eighty-six million, one hundred fifty-one thousand, one hundred thirty-nine".