28202264851 has 18 divisors (see below), whose sum is σ = 30244601660. Its totient is φ = 26224866576.

The previous prime is 28202264843. The next prime is 28202264917. The reversal of 28202264851 is 15846220282.

It is not a de Polignac number, because 28202264851 - 2³ = 28202264843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28202264351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 43188441 + ... + 43189093.

Almost surely, 2^28202264851 is an apocalyptic number.

28202264851 is a deficient number, since it is larger than the sum of its proper divisors (2042336809).

28202264851 is an frugal number, since it uses more digits than its factorization.

28202264851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The spelling of 28202264851 in words is "twenty-eight billion, two hundred two million, two hundred sixty-four thousand, eight hundred fifty-one".