28093535232 has 704 divisors, whose sum is σ = 97495105536. Its totient is φ = 7007109120.

The previous prime is 28093535231. The next prime is 28093535273. The reversal of 28093535232 is 23253539082.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28093535231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 419306463 + ... + 419306529.

Almost surely, 2^28093535232 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 28093535232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48747552768).

28093535232 is an abundant number, since it is smaller than the sum of its proper divisors (69401570304).

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

28093535232 is a wasteful number, since it uses less digits than its factorization.

28093535232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 42.

The spelling of 28093535232 in words is "twenty-eight billion, ninety-three million, five hundred thirty-five thousand, two hundred thirty-two".