28877648330 has 16 divisors (see below), whose sum is σ = 52439766984. Its totient is φ = 11448837120.

The previous prime is 28877648329. The next prime is 28877648357. The reversal of 28877648330 is 3384677882.

It can be written as a sum of positive squares in 4 ways, for example, as 19247955169 + 9629693161 = 138737^2 + 98131^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12776591 + ... + 12778850.

Almost surely, 2^28877648330 is an apocalyptic number.

28877648330 is a deficient number, since it is larger than the sum of its proper divisors (23562118654).

28877648330 is a wasteful number, since it uses less digits than its factorization.

28877648330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25555561.

The product of its (nonzero) digits is 10838016, while the sum is 56.

The spelling of 28877648330 in words is "twenty-eight billion, eight hundred seventy-seven million, six hundred forty-eight thousand, three hundred thirty".