28682372730 has 64 divisors (see below), whose sum is σ = 77518135296. Its totient is φ = 6729000000.

The previous prime is 28682372723. The next prime is 28682372743. The reversal of 28682372730 is 3727328682.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28682372730.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1391646 + ... + 1412105.

It is an arithmetic number, because the mean of its divisors is an integer number (1211220864).

Almost surely, 2^28682372730 is an apocalyptic number.

28682372730 is an abundant number, since it is smaller than the sum of its proper divisors (48835762566).

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

28682372730 is a wasteful number, since it uses less digits than its factorization.

28682372730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803803.

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 28682372730 in words is "twenty-eight billion, six hundred eighty-two million, three hundred seventy-two thousand, seven hundred thirty".