28135143911 has 8 divisors (see below), whose sum is σ = 32466630144. Its totient is φ = 23881702680.

The previous prime is 28135143877. The next prime is 28135143913. The reversal of 28135143911 is 11934153182.

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 28135143911 - 2¹⁰ = 28135142887 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 (28135143913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19510475 + ... + 19511916.

It is an arithmetic number, because the mean of its divisors is an integer number (4058328768).

Almost surely, 2^28135143911 is an apocalyptic number.

28135143911 is a deficient number, since it is larger than the sum of its proper divisors (4331486233).

28135143911 is a wasteful number, since it uses less digits than its factorization.

28135143911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39022501.

The product of its digits is 25920, while the sum is 38.

The spelling of 28135143911 in words is "twenty-eight billion, one hundred thirty-five million, one hundred forty-three thousand, nine hundred eleven".