28850203406 has 4 divisors (see below), whose sum is σ = 43275305112. Its totient is φ = 14425101702.

The previous prime is 28850203397. The next prime is 28850203423. The reversal of 28850203406 is 60430205882.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28850203406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7212550850 + ... + 7212550853.

It is an arithmetic number, because the mean of its divisors is an integer number (10818826278).

Almost surely, 2^28850203406 is an apocalyptic number.

28850203406 is a deficient number, since it is larger than the sum of its proper divisors (14425101706).

28850203406 is a wasteful number, since it uses less digits than its factorization.

28850203406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14425101705.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 28850203406 in words is "twenty-eight billion, eight hundred fifty million, two hundred three thousand, four hundred six".