28464345536 has 28 divisors (see below), whose sum is σ = 61618840440. Its totient is φ = 12938338560.

The previous prime is 28464345527. The next prime is 28464345551. The reversal of 28464345536 is 63554346482.

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, 20215451 + ... + 20216858.

Almost surely, 2^28464345536 is an apocalyptic number.

It is an amenable number.

28464345536 is an abundant number, since it is smaller than the sum of its proper divisors (33154494904).

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

28464345536 is a wasteful number, since it uses less digits than its factorization.

28464345536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40432332 (or 40432322 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 50.

The spelling of 28464345536 in words is "twenty-eight billion, four hundred sixty-four million, three hundred forty-five thousand, five hundred thirty-six".