28087183679402 has 8 divisors (see below), whose sum is σ = 42195294319716. Its totient is φ = 14022085572832.

The previous prime is 28087183679377. The next prime is 28087183679449. The reversal of 28087183679402 is 20497638178082.

It can be written as a sum of positive squares in 2 ways, for example, as 28066144467001 + 21039212401 = 5297749^2 + 145049^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10753131803 + ... + 10753134414.

Almost surely, 2^{28087183679402} is an apocalyptic number.

28087183679402 is a deficient number, since it is larger than the sum of its proper divisors (14108110640314).

28087183679402 is a wasteful number, since it uses less digits than its factorization.

28087183679402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21506266872.

The product of its (nonzero) digits is 65028096, while the sum is 65.

The spelling of 28087183679402 in words is "twenty-eight trillion, eighty-seven billion, one hundred eighty-three million, six hundred seventy-nine thousand, four hundred two".