28135084087 has 8 divisors (see below), whose sum is σ = 30696548112. Its totient is φ = 25574241600.

The previous prime is 28135084051. The next prime is 28135084091. The reversal of 28135084087 is 78048053182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28135084087 - 2¹⁵ = 28135051319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28135084007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58078 + ... + 244219.

It is an arithmetic number, because the mean of its divisors is an integer number (3837068514).

Almost surely, 2^28135084087 is an apocalyptic number.

28135084087 is a deficient number, since it is larger than the sum of its proper divisors (2561464025).

28135084087 is a wasteful number, since it uses less digits than its factorization.

28135084087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310769.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 28135084087 in words is "twenty-eight billion, one hundred thirty-five million, eighty-four thousand, eighty-seven".