28743034782 has 48 divisors (see below), whose sum is σ = 72213918336. Its totient is φ = 7465722000.

The previous prime is 28743034759. The next prime is 28743034807.

28743034782 is nontrivially palindromic in base 10.

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, 2822844 + ... + 2833007.

It is an arithmetic number, because the mean of its divisors is an integer number (1504456632).

Almost surely, 2^28743034782 is an apocalyptic number.

28743034782 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28743034782 is an abundant number, since it is smaller than the sum of its proper divisors (43470883554).

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

28743034782 is a wasteful number, since it uses less digits than its factorization.

28743034782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5655885 (or 5655874 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 28743034782 in words is "twenty-eight billion, seven hundred forty-three million, thirty-four thousand, seven hundred eighty-two".