28754599864320 has 1536 divisors, whose sum is σ = 113580859392000. Its totient is φ = 6842442055680.

The previous prime is 28754599864273. The next prime is 28754599864337. The reversal of 28754599864320 is 2346899545782.

28754599864320 is a `hidden beast` number, since 2 + 8 + 7 + 5 + 4 + 599 + 8 + 6 + 4 + 3 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (1536).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 42100438699 + ... + 42100439381.

It is an arithmetic number, because the mean of its divisors is an integer number (73945872000).

Almost surely, 2^{28754599864320} is an apocalyptic number.

28754599864320 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 28754599864320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56790429696000).

28754599864320 is an abundant number, since it is smaller than the sum of its proper divisors (84826259527680).

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

28754599864320 is a wasteful number, since it uses less digits than its factorization.

28754599864320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 966 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 1045094400, while the sum is 72.

The spelling of 28754599864320 in words is "twenty-eight trillion, seven hundred fifty-four billion, five hundred ninety-nine million, eight hundred sixty-four thousand, three hundred twenty".