28671506085 has 16 divisors (see below), whose sum is σ = 45885971520. Its totient is φ = 15287616000.

The previous prime is 28671506069. The next prime is 28671506113. The reversal of 28671506085 is 58060517682.

It is not a de Polignac number, because 28671506085 - 2⁴ = 28671506069 is a prime.

It is a super-2 number, since 2×28671506085² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178855 + ... + 298884.

It is an arithmetic number, because the mean of its divisors is an integer number (2867873220).

Almost surely, 2^28671506085 is an apocalyptic number.

It is an amenable number.

28671506085 is a deficient number, since it is larger than the sum of its proper divisors (17214465435).

28671506085 is a wasteful number, since it uses less digits than its factorization.

28671506085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481748.

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 28671506085 in words is "twenty-eight billion, six hundred seventy-one million, five hundred six thousand, eighty-five".