28456349504 has 56 divisors (see below), whose sum is σ = 65225176128. Its totient is φ = 12173834240.

The previous prime is 28456349503. The next prime is 28456349507. The reversal of 28456349504 is 40594365482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28456349503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176884 + ... + 1200819.

It is an arithmetic number, because the mean of its divisors is an integer number (1164735288).

Almost surely, 2^28456349504 is an apocalyptic number.

It is an amenable number.

28456349504 is an abundant number, since it is smaller than the sum of its proper divisors (36768826624).

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

28456349504 is a wasteful number, since it uses less digits than its factorization.

28456349504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377743 (or 2377733 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 28456349504 in words is "twenty-eight billion, four hundred fifty-six million, three hundred forty-nine thousand, five hundred four".