28618168461 has 8 divisors (see below), whose sum is σ = 38234028000. Its totient is φ = 19040543952.

The previous prime is 28618168459. The next prime is 28618168487. The reversal of 28618168461 is 16486181682.

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

It is not a de Polignac number, because 28618168461 - 2¹ = 28618168459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28618168561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9557010 + ... + 9560003.

It is an arithmetic number, because the mean of its divisors is an integer number (4779253500).

Almost surely, 2^28618168461 is an apocalyptic number.

It is an amenable number.

28618168461 is a deficient number, since it is larger than the sum of its proper divisors (9615859539).

28618168461 is a wasteful number, since it uses less digits than its factorization.

28618168461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19117515.

The product of its digits is 884736, while the sum is 51.

The spelling of 28618168461 in words is "twenty-eight billion, six hundred eighteen million, one hundred sixty-eight thousand, four hundred sixty-one".