28111074534 has 24 divisors (see below), whose sum is σ = 60921059472. Its totient is φ = 9368245680.

The previous prime is 28111074533. The next prime is 28111074539. The reversal of 28111074534 is 43547011182.

28111074534 is a `hidden beast` number, since 2 + 8 + 1 + 110 + 7 + 4 + 534 = 666.

It is a super-3 number, since 3×28111074534³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28111074533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92922 + ... + 254669.

It is an arithmetic number, because the mean of its divisors is an integer number (2538377478).

Almost surely, 2^28111074534 is an apocalyptic number.

28111074534 is an abundant number, since it is smaller than the sum of its proper divisors (32809984938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28111074534 is a wasteful number, since it uses less digits than its factorization.

28111074534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352092 (or 352089 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 28111074534 in words is "twenty-eight billion, one hundred eleven million, seventy-four thousand, five hundred thirty-four".