28023518757312 has 168 divisors, whose sum is σ = 86669198375760. Its totient is φ = 8606069821440.

The previous prime is 28023518757293. The next prime is 28023518757389. The reversal of 28023518757312 is 21375781532082.

28023518757312 is a `hidden beast` number, since 2 + 8 + 0 + 2 + 3 + 51 + 8 + 7 + 573 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 309639 + ... + 7492857.

It is an arithmetic number, because the mean of its divisors is an integer number (515888085570).

Almost surely, 2^{28023518757312} 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 28023518757312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43334599187880).

28023518757312 is an abundant number, since it is smaller than the sum of its proper divisors (58645679618448).

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

28023518757312 is a wasteful number, since it uses less digits than its factorization.

28023518757312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7183771 (or 7183758 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

The spelling of 28023518757312 in words is "twenty-eight trillion, twenty-three billion, five hundred eighteen million, seven hundred fifty-seven thousand, three hundred twelve".