28561629675 has 12 divisors (see below), whose sum is σ = 47221894520. Its totient is φ = 15232869120.

The previous prime is 28561629653. The next prime is 28561629689. The reversal of 28561629675 is 57692616582.

It is not a de Polignac number, because 28561629675 - 2⁶ = 28561629611 is a prime.

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, 190410790 + ... + 190410939.

Almost surely, 2^28561629675 is an apocalyptic number.

28561629675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28561629675 is a deficient number, since it is larger than the sum of its proper divisors (18660264845).

28561629675 is a wasteful number, since it uses less digits than its factorization.

28561629675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380821742 (or 380821737 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 57.

The spelling of 28561629675 in words is "twenty-eight billion, five hundred sixty-one million, six hundred twenty-nine thousand, six hundred seventy-five".