28070755682 has 6 divisors (see below), whose sum is σ = 42106488939. Its totient is φ = 14035259370.

The previous prime is 28070755663. The next prime is 28070755723. The reversal of 28070755682 is 28655707082.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14035377841 + 14035377841 = 118471^2 + 118471^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=118471.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28070755682.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 177707 + ... + 296177.

Almost surely, 2^28070755682 is an apocalyptic number.

28070755682 is a deficient number, since it is larger than the sum of its proper divisors (14035733257).

28070755682 is an frugal number, since it uses more digits than its factorization.

28070755682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236944 (or 118473 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 50.

Multiplying 28070755682 by its sum of digits (50), we get a square (1403537784100 = 1184710²).

The spelling of 28070755682 in words is "twenty-eight billion, seventy million, seven hundred fifty-five thousand, six hundred eighty-two".