28045652348 has 72 divisors (see below), whose sum is σ = 59462938080. Its totient is φ = 11529786240.

The previous prime is 28045652333. The next prime is 28045652351. The reversal of 28045652348 is 84325654082.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 487658 + ... + 542126.

It is an arithmetic number, because the mean of its divisors is an integer number (825874140).

Almost surely, 2^28045652348 is an apocalyptic number.

28045652348 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28045652348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29731469040).

28045652348 is an abundant number, since it is smaller than the sum of its proper divisors (31417285732).

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

28045652348 is a wasteful number, since it uses less digits than its factorization.

28045652348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54595 (or 54586 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 47.

The spelling of 28045652348 in words is "twenty-eight billion, forty-five million, six hundred fifty-two thousand, three hundred forty-eight".