28235489899392 has 384 divisors, whose sum is σ = 82568678512320. Its totient is φ = 9260443238400.

The previous prime is 28235489899369. The next prime is 28235489899427. The reversal of 28235489899392 is 29399898453282.

28235489899392 is a `hidden beast` number, since 2 + 8 + 2 + 3 + 54 + 8 + 98 + 99 + 392 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27654739842 + ... + 27654740862.

Almost surely, 2^{28235489899392} 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 28235489899392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41284339256160).

28235489899392 is an abundant number, since it is smaller than the sum of its proper divisors (54333188612928).

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

28235489899392 is a wasteful number, since it uses less digits than its factorization.

28235489899392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2342 (or 2327 counting only the distinct ones).

The product of its digits is 4837294080, while the sum is 81.

The spelling of 28235489899392 in words is "twenty-eight trillion, two hundred thirty-five billion, four hundred eighty-nine million, eight hundred ninety-nine thousand, three hundred ninety-two".