28758056056782 has 32 divisors (see below), whose sum is σ = 62041473277728. Its totient is φ = 8834197654656.

The previous prime is 28758056056771. The next prime is 28758056056783. The reversal of 28758056056782 is 28765065085782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28758056056783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300680593 + ... + 300776220.

It is an arithmetic number, because the mean of its divisors is an integer number (1938796039929).

Almost surely, 2^{28758056056782} is an apocalyptic number.

28758056056782 is an abundant number, since it is smaller than the sum of its proper divisors (33283417220946).

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

28758056056782 is a wasteful number, since it uses less digits than its factorization.

28758056056782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601457444.

The product of its (nonzero) digits is 451584000, while the sum is 69.

The spelling of 28758056056782 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, fifty-six thousand, seven hundred eighty-two".