28135356304 has 80 divisors (see below), whose sum is σ = 60420311424. Its totient is φ = 12584678400.

The previous prime is 28135356259. The next prime is 28135356343. The reversal of 28135356304 is 40365353182.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7658212 + ... + 7661884.

Almost surely, 2^28135356304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28135356304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30210155712).

28135356304 is an abundant number, since it is smaller than the sum of its proper divisors (32284955120).

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

28135356304 is a wasteful number, since it uses less digits than its factorization.

28135356304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4376 (or 4370 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 28135356304 in words is "twenty-eight billion, one hundred thirty-five million, three hundred fifty-six thousand, three hundred four".