28402453803 has 6 divisors (see below), whose sum is σ = 37870327612. Its totient is φ = 18934774600.

The previous prime is 28402453801. The next prime is 28402453847. The reversal of 28402453803 is 30835420482.

It is not a de Polignac number, because 28402453803 - 2¹ = 28402453801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28402453801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 243253 + ... + 340553.

Almost surely, 2^28402453803 is an apocalyptic number.

28402453803 is a deficient number, since it is larger than the sum of its proper divisors (9467873809).

28402453803 is an frugal number, since it uses more digits than its factorization.

28402453803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194605 (or 97304 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 28402453803 in words is "twenty-eight billion, four hundred two million, four hundred fifty-three thousand, eight hundred three".