28008642466 has 8 divisors (see below), whose sum is σ = 48014815680. Its totient is φ = 12003703908.

The previous prime is 28008642457. The next prime is 28008642481. The reversal of 28008642466 is 66424680082.

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

It is a super-2 number, since 2×28008642466² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1000308646 + ... + 1000308673.

It is an arithmetic number, because the mean of its divisors is an integer number (6001851960).

Almost surely, 2^28008642466 is an apocalyptic number.

28008642466 is a deficient number, since it is larger than the sum of its proper divisors (20006173214).

28008642466 is a wasteful number, since it uses less digits than its factorization.

28008642466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000617328.

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 28008642466 in words is "twenty-eight billion, eight million, six hundred forty-two thousand, four hundred sixty-six".