28135376135 has 8 divisors (see below), whose sum is σ = 33884339136. Its totient is φ = 22427042400.

The previous prime is 28135376119. The next prime is 28135376141. The reversal of 28135376135 is 53167353182.

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

It is not a de Polignac number, because 28135376135 - 2⁴ = 28135376119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10155791 + ... + 10158560.

It is an arithmetic number, because the mean of its divisors is an integer number (4235542392).

Almost surely, 2^28135376135 is an apocalyptic number.

28135376135 is a deficient number, since it is larger than the sum of its proper divisors (5748963001).

28135376135 is a wasteful number, since it uses less digits than its factorization.

28135376135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20314633.

The product of its digits is 453600, while the sum is 44.

The spelling of 28135376135 in words is "twenty-eight billion, one hundred thirty-five million, three hundred seventy-six thousand, one hundred thirty-five".