28870752766386 has 32 divisors (see below), whose sum is σ = 61098754867200. Its totient is φ = 9069346411920.

The previous prime is 28870752766357. The next prime is 28870752766403. The reversal of 28870752766386 is 68366725707882.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 662942146 + ... + 662985693.

It is an arithmetic number, because the mean of its divisors is an integer number (1909336089600).

Almost surely, 2^{28870752766386} is an apocalyptic number.

28870752766386 is an abundant number, since it is smaller than the sum of its proper divisors (32228002100814).

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

28870752766386 is a wasteful number, since it uses less digits than its factorization.

28870752766386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325928054.

The product of its (nonzero) digits is 2275983360, while the sum is 75.

The spelling of 28870752766386 in words is "twenty-eight trillion, eight hundred seventy billion, seven hundred fifty-two million, seven hundred sixty-six thousand, three hundred eighty-six".