28985829288 has 64 divisors (see below), whose sum is σ = 78092501760. Its totient is φ = 8912576256.

The previous prime is 28985829287. The next prime is 28985829293. The reversal of 28985829288 is 88292858982.

It is a super-3 number, since 3×28985829288³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (28985829287) 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, 432706 + ... + 495182.

It is an arithmetic number, because the mean of its divisors is an integer number (1220195340).

Almost surely, 2^28985829288 is an apocalyptic number.

It is an amenable number.

28985829288 is an abundant number, since it is smaller than the sum of its proper divisors (49106672472).

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

28985829288 is a wasteful number, since it uses less digits than its factorization.

28985829288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63986 (or 63982 counting only the distinct ones).

The product of its digits is 106168320, while the sum is 69.

The spelling of 28985829288 in words is "twenty-eight billion, nine hundred eighty-five million, eight hundred twenty-nine thousand, two hundred eighty-eight".