28888588729 has 64 divisors (see below), whose sum is σ = 40209039360. Its totient is φ = 20023200000.

The previous prime is 28888588721. The next prime is 28888588739. The reversal of 28888588729 is 92788588882.

It is a cyclic number.

It is not a de Polignac number, because 28888588729 - 2³ = 28888588721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28888588721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7786927 + ... + 7790635.

It is an arithmetic number, because the mean of its divisors is an integer number (628266240).

Almost surely, 2^28888588729 is an apocalyptic number.

It is an amenable number.

28888588729 is a deficient number, since it is larger than the sum of its proper divisors (11320450631).

28888588729 is a wasteful number, since it uses less digits than its factorization.

28888588729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022.

The product of its digits is 330301440, while the sum is 73.

The spelling of 28888588729 in words is "twenty-eight billion, eight hundred eighty-eight million, five hundred eighty-eight thousand, seven hundred twenty-nine".