28617975711311 has 12 divisors (see below), whose sum is σ = 33759175721040. Its totient is φ = 24184204823520.

The previous prime is 28617975711307. The next prime is 28617975711317. The reversal of 28617975711311 is 11311757971682.

It is not a de Polignac number, because 28617975711311 - 2² = 28617975711307 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28617975711317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4112956526 + ... + 4112963483.

It is an arithmetic number, because the mean of its divisors is an integer number (2813264643420).

Almost surely, 2^{28617975711311} is an apocalyptic number.

28617975711311 is a deficient number, since it is larger than the sum of its proper divisors (5141200009729).

28617975711311 is an equidigital number, since it uses as much as digits as its factorization.

28617975711311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8225920094 (or 8225920087 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 59.

The spelling of 28617975711311 in words is "twenty-eight trillion, six hundred seventeen billion, nine hundred seventy-five million, seven hundred eleven thousand, three hundred eleven".