28782722592 has 162 divisors, whose sum is σ = 88746817887. Its totient is φ = 8844705792.

The previous prime is 28782722569. The next prime is 28782722611. The reversal of 28782722592 is 29522728782.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

28782722592 is a `hidden beast` number, since 2 + 8 + 7 + 8 + 27 + 22 + 592 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 2277580176 + 26505142416 = 47724^2 + 162804^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=119964.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 37428384 + ... + 37429152.

Almost surely, 2^28782722592 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 28782722592

28782722592 is an abundant number, since it is smaller than the sum of its proper divisors (59964095295).

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

28782722592 is an equidigital number, since it uses as much as digits as its factorization.

28782722592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 787 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The spelling of 28782722592 in words is "twenty-eight billion, seven hundred eighty-two million, seven hundred twenty-two thousand, five hundred ninety-two".