28987586898 has 32 divisors (see below), whose sum is σ = 59983632000. Its totient is φ = 9327889536.

The previous prime is 28987586891. The next prime is 28987586899. The reversal of 28987586898 is 89868578982.

It is not an unprimeable number, because it can be changed into a prime (28987586891) 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, 2093803 + ... + 2107601.

It is an arithmetic number, because the mean of its divisors is an integer number (1874488500).

Almost surely, 2^28987586898 is an apocalyptic number.

28987586898 is an abundant number, since it is smaller than the sum of its proper divisors (30996045102).

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

28987586898 is a wasteful number, since it uses less digits than its factorization.

28987586898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25906.

The product of its digits is 1114767360, while the sum is 78.

The spelling of 28987586898 in words is "twenty-eight billion, nine hundred eighty-seven million, five hundred eighty-six thousand, eight hundred ninety-eight".