28432453920000 has 1440 divisors, whose sum is σ = 104121756372480. Its totient is φ = 6843432960000.

The previous prime is 28432453919957. The next prime is 28432453920029. The reversal of 28432453920000 is 2935423482.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 67535519790 + ... + 67535520210.

Almost surely, 2^{28432453920000} is an apocalyptic number.

28432453920000 is a gapful number since it is divisible by the number (20) 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 28432453920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52060878186240).

28432453920000 is an abundant number, since it is smaller than the sum of its proper divisors (75689302452480).

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

28432453920000 is a wasteful number, since it uses less digits than its factorization.

28432453920000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 28432453920000 in words is "twenty-eight trillion, four hundred thirty-two billion, four hundred fifty-three million, nine hundred twenty thousand".