28282539448 has 16 divisors (see below), whose sum is σ = 53089831080. Its totient is φ = 14125251168.

The previous prime is 28282539437. The next prime is 28282539457. The reversal of 28282539448 is 84493528282.

It is a super-2 number, since 2×28282539448² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1994815 + ... + 2008942.

Almost surely, 2^28282539448 is an apocalyptic number.

It is an amenable number.

28282539448 is a deficient number, since it is larger than the sum of its proper divisors (24807291632).

28282539448 is a wasteful number, since it uses less digits than its factorization.

28282539448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004646 (or 4004642 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 55.

The spelling of 28282539448 in words is "twenty-eight billion, two hundred eighty-two million, five hundred thirty-nine thousand, four hundred forty-eight".