28300071803 has 4 divisors (see below), whose sum is σ = 28658300640. Its totient is φ = 27941842968.

The previous prime is 28300071781. The next prime is 28300071809. The reversal of 28300071803 is 30817000382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28300071803 - 2²² = 28295877499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28300071803.

It is not an unprimeable number, because it can be changed into a prime (28300071809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179114300 + ... + 179114457.

It is an arithmetic number, because the mean of its divisors is an integer number (7164575160).

Almost surely, 2^28300071803 is an apocalyptic number.

28300071803 is a deficient number, since it is larger than the sum of its proper divisors (358228837).

28300071803 is an equidigital number, since it uses as much as digits as its factorization.

28300071803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358228836.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 28300071803 in words is "twenty-eight billion, three hundred million, seventy-one thousand, eight hundred three".