28877600985 has 8 divisors (see below), whose sum is σ = 46204161600. Its totient is φ = 15401387184.

The previous prime is 28877600951. The next prime is 28877600989. The reversal of 28877600985 is 58900677882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28877600985 - 2⁸ = 28877600729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28877600989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962586685 + ... + 962586714.

It is an arithmetic number, because the mean of its divisors is an integer number (5775520200).

Almost surely, 2^28877600985 is an apocalyptic number.

It is an amenable number.

28877600985 is a deficient number, since it is larger than the sum of its proper divisors (17326560615).

28877600985 is a wasteful number, since it uses less digits than its factorization.

28877600985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925173407.

The product of its (nonzero) digits is 13547520, while the sum is 60.

The spelling of 28877600985 in words is "twenty-eight billion, eight hundred seventy-seven million, six hundred thousand, nine hundred eighty-five".