28484459438 has 4 divisors (see below), whose sum is σ = 42726689160. Its totient is φ = 14242229718.

The previous prime is 28484459417. The next prime is 28484459441. The reversal of 28484459438 is 83495448482.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×28484459438³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7121114858 + ... + 7121114861.

It is an arithmetic number, because the mean of its divisors is an integer number (10681672290).

Almost surely, 2^28484459438 is an apocalyptic number.

28484459438 is a deficient number, since it is larger than the sum of its proper divisors (14242229722).

28484459438 is a wasteful number, since it uses less digits than its factorization.

28484459438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14242229721.

The product of its digits is 35389440, while the sum is 59.

The spelling of 28484459438 in words is "twenty-eight billion, four hundred eighty-four million, four hundred fifty-nine thousand, four hundred thirty-eight".