28066381675 has 12 divisors (see below), whose sum is σ = 34826711920. Its totient is φ = 22437364320.

The previous prime is 28066381661. The next prime is 28066381687. The reversal of 28066381675 is 57618366082.

It is not a de Polignac number, because 28066381675 - 2¹³ = 28066373483 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 357087 + ... + 428536.

Almost surely, 2^28066381675 is an apocalyptic number.

28066381675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28066381675 is a deficient number, since it is larger than the sum of its proper divisors (6760330245).

28066381675 is a wasteful number, since it uses less digits than its factorization.

28066381675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787062 (or 787057 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 28066381675 in words is "twenty-eight billion, sixty-six million, three hundred eighty-one thousand, six hundred seventy-five".