28660424485 has 32 divisors (see below), whose sum is σ = 42987209472. Its totient is φ = 17821140480.

The previous prime is 28660424483. The next prime is 28660424489. The reversal of 28660424485 is 58442406682.

It is not a de Polignac number, because 28660424485 - 2¹ = 28660424483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28660424483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59089 + ... + 246601.

It is an arithmetic number, because the mean of its divisors is an integer number (1343350296).

Almost surely, 2^28660424485 is an apocalyptic number.

It is an amenable number.

28660424485 is a deficient number, since it is larger than the sum of its proper divisors (14326784987).

28660424485 is a wasteful number, since it uses less digits than its factorization.

28660424485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187933.

The product of its (nonzero) digits is 2949120, while the sum is 49.

The spelling of 28660424485 in words is "twenty-eight billion, six hundred sixty million, four hundred twenty-four thousand, four hundred eighty-five".