28919845392000 has 2048 divisors, whose sum is σ = 108929274854400. Its totient is φ = 6751361433600.

The previous prime is 28919845391989. The next prime is 28919845392013. The reversal of 28919845392000 is 29354891982.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 98702543854 + ... + 98702544146.

Almost surely, 2^{28919845392000} is an apocalyptic number.

28919845392000 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 28919845392000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54464637427200).

28919845392000 is an abundant number, since it is smaller than the sum of its proper divisors (80009429462400).

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

28919845392000 is a wasteful number, since it uses less digits than its factorization.

28919845392000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 60.

The spelling of 28919845392000 in words is "twenty-eight trillion, nine hundred nineteen billion, eight hundred forty-five million, three hundred ninety-two thousand".