28646446700843 has 8 divisors (see below), whose sum is σ = 30154713798720. Its totient is φ = 27138235540680.

The previous prime is 28646446700821. The next prime is 28646446700869. The reversal of 28646446700843 is 34800764464682.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28646446700843 - 2²⁰ = 28646445652267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28646446700873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12931205 + ... + 14983622.

It is an arithmetic number, because the mean of its divisors is an integer number (3769339224840).

Almost surely, 2^{28646446700843} is an apocalyptic number.

28646446700843 is a deficient number, since it is larger than the sum of its proper divisors (1508267097877).

28646446700843 is a wasteful number, since it uses less digits than its factorization.

28646446700843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27968857.

The product of its (nonzero) digits is 148635648, while the sum is 62.

The spelling of 28646446700843 in words is "twenty-eight trillion, six hundred forty-six billion, four hundred forty-six million, seven hundred thousand, eight hundred forty-three".