28020678803 has 8 divisors (see below), whose sum is σ = 30378642000. Its totient is φ = 25691647968.

The previous prime is 28020678797. The next prime is 28020678827. The reversal of 28020678803 is 30887602082.

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 28020678803 - 2²⁰ = 28019630227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28020678863) 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, 7231073 + ... + 7234946.

It is an arithmetic number, because the mean of its divisors is an integer number (3797330250).

Almost surely, 2^28020678803 is an apocalyptic number.

28020678803 is a deficient number, since it is larger than the sum of its proper divisors (2357963197).

28020678803 is a wasteful number, since it uses less digits than its factorization.

28020678803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14466181.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 28020678803 in words is "twenty-eight billion, twenty million, six hundred seventy-eight thousand, eight hundred three".