28540718004320 has 192 divisors, whose sum is σ = 73708603347456. Its totient is φ = 10396469821440.

The previous prime is 28540718004307. The next prime is 28540718004343. The reversal of 28540718004320 is 2340081704582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 606490232 + ... + 606537288.

It is an arithmetic number, because the mean of its divisors is an integer number (383898975768).

Almost surely, 2^{28540718004320} is an apocalyptic number.

28540718004320 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 28540718004320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36854301673728).

28540718004320 is an abundant number, since it is smaller than the sum of its proper divisors (45167885343136).

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

28540718004320 is a wasteful number, since it uses less digits than its factorization.

28540718004320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54313 (or 54305 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 28540718004320 in words is "twenty-eight trillion, five hundred forty billion, seven hundred eighteen million, four thousand, three hundred twenty".