28752366325782 has 64 divisors (see below), whose sum is σ = 62758296944640. Its totient is φ = 8709247372800.

The previous prime is 28752366325751. The next prime is 28752366325783.

28752366325782 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28752366325783) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3054533308 + ... + 3054542720.

It is an arithmetic number, because the mean of its divisors is an integer number (980598389760).

Almost surely, 2^{28752366325782} is an apocalyptic number.

28752366325782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28752366325782 is an abundant number, since it is smaller than the sum of its proper divisors (34005930618858).

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

28752366325782 is a wasteful number, since it uses less digits than its factorization.

28752366325782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23589.

The product of its digits is 406425600, while the sum is 66.

The spelling of 28752366325782 in words is "twenty-eight trillion, seven hundred fifty-two billion, three hundred sixty-six million, three hundred twenty-five thousand, seven hundred eighty-two".