28543905751711 has 16 divisors (see below), whose sum is σ = 33675101317120. Its totient is φ = 23676139412640.

The previous prime is 28543905751709. The next prime is 28543905751717. The reversal of 28543905751711 is 11715750934582.

It is a cyclic number.

It is not a de Polignac number, because 28543905751711 - 2¹ = 28543905751709 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 (28543905751717) 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, 3905680 + ... + 8505418.

It is an arithmetic number, because the mean of its divisors is an integer number (2104693832320).

Almost surely, 2^{28543905751711} is an apocalyptic number.

28543905751711 is a deficient number, since it is larger than the sum of its proper divisors (5131195565409).

28543905751711 is a wasteful number, since it uses less digits than its factorization.

28543905751711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628374.

The product of its (nonzero) digits is 10584000, while the sum is 58.

The spelling of 28543905751711 in words is "twenty-eight trillion, five hundred forty-three billion, nine hundred five million, seven hundred fifty-one thousand, seven hundred eleven".