28489322403 has 16 divisors (see below), whose sum is σ = 42278328960. Its totient is φ = 18960515208.

The previous prime is 28489322401. The next prime is 28489322417. The reversal of 28489322403 is 30422398482.

28489322403 is a `hidden beast` number, since 284 + 8 + 9 + 322 + 40 + 3 = 666.

It is not a de Polignac number, because 28489322403 - 2¹ = 28489322401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28489322401) 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, 882925 + ... + 914622.

It is an arithmetic number, because the mean of its divisors is an integer number (2642395560).

Almost surely, 2^28489322403 is an apocalyptic number.

28489322403 is a deficient number, since it is larger than the sum of its proper divisors (13789006557).

28489322403 is a wasteful number, since it uses less digits than its factorization.

28489322403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798143 (or 1798137 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 28489322403 in words is "twenty-eight billion, four hundred eighty-nine million, three hundred twenty-two thousand, four hundred three".