28076885543 has 16 divisors (see below), whose sum is σ = 33220608000. Its totient is φ = 23217661152.

The previous prime is 28076885539. The next prime is 28076885569. The reversal of 28076885543 is 34558867082.

It is a happy number.

It is not a de Polignac number, because 28076885543 - 2² = 28076885539 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 (28076885843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205568 + ... + 313706.

It is an arithmetic number, because the mean of its divisors is an integer number (2076288000).

Almost surely, 2^28076885543 is an apocalyptic number.

28076885543 is a deficient number, since it is larger than the sum of its proper divisors (5143722457).

28076885543 is a wasteful number, since it uses less digits than its factorization.

28076885543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109454.

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 28076885543 in words is "twenty-eight billion, seventy-six million, eight hundred eighty-five thousand, five hundred forty-three".