28498839984 has 80 divisors (see below), whose sum is σ = 86614143840. Its totient is φ = 8940810240.

The previous prime is 28498839983. The next prime is 28498839997. The reversal of 28498839984 is 48993889482.

28498839984 is a `hidden beast` number, since 2 + 84 + 9 + 88 + 399 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28498839983) 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, 1932937 + ... + 1947624.

It is an arithmetic number, because the mean of its divisors is an integer number (1082676798).

Almost surely, 2^28498839984 is an apocalyptic number.

28498839984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28498839984 is an abundant number, since it is smaller than the sum of its proper divisors (58115303856).

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

28498839984 is a wasteful number, since it uses less digits than its factorization.

28498839984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880595 (or 3880583 counting only the distinct ones).

The product of its digits is 286654464, while the sum is 72.

The spelling of 28498839984 in words is "twenty-eight billion, four hundred ninety-eight million, eight hundred thirty-nine thousand, nine hundred eighty-four".