28889175534 has 32 divisors (see below), whose sum is σ = 57926530080. Its totient is φ = 9605062272.

The previous prime is 28889175533. The next prime is 28889175569. The reversal of 28889175534 is 43557198882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28889175533) 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, 4338952 + ... + 4345604.

It is an arithmetic number, because the mean of its divisors is an integer number (1810204065).

Almost surely, 2^28889175534 is an apocalyptic number.

28889175534 is an abundant number, since it is smaller than the sum of its proper divisors (29037354546).

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

28889175534 is a wasteful number, since it uses less digits than its factorization.

28889175534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404.

The product of its digits is 19353600, while the sum is 60.

The spelling of 28889175534 in words is "twenty-eight billion, eight hundred eighty-nine million, one hundred seventy-five thousand, five hundred thirty-four".