28960551684 has 81 divisors (see below), whose sum is σ = 74154844309. Its totient is φ = 9529968000.

The previous prime is 28960551649. The next prime is 28960551703. The reversal of 28960551684 is 48615506982.

The square root of 28960551684 is 170178.

It is a perfect power (a square), and thus also a powerful number.

28960551684 is a `hidden beast` number, since 2 + 8 + 9 + 6 + 0 + 551 + 6 + 84 = 666.

It can be written as a sum of positive squares in only one way, i.e., 510308100 + 28450243584 = 22590^2 + 168672^2 .

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 28960551684.

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 26 ways as a sum of consecutive naturals, for example, 115380559 + ... + 115380809.

Almost surely, 2^28960551684 is an apocalyptic number.

28960551684 is the 170178-th square number.

It is an amenable number.

28960551684 is an abundant number, since it is smaller than the sum of its proper divisors (45194292625).

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

28960551684 is a wasteful number, since it uses less digits than its factorization.

28960551684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

It can be divided in two parts, 28960 and 551684, that added together give a square (580644 = 762²).

The spelling of 28960551684 in words is "twenty-eight billion, nine hundred sixty million, five hundred fifty-one thousand, six hundred eighty-four".