228178882851 has 4 divisors (see below), whose sum is σ = 304238510472. Its totient is φ = 152119255232.

The previous prime is 228178882843. The next prime is 228178882909. The reversal of 228178882851 is 158288871822.

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 228178882851 - 2³ = 228178882843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228178887851) 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, 38029813806 + ... + 38029813811.

It is an arithmetic number, because the mean of its divisors is an integer number (76059627618).

Almost surely, 2^228178882851 is an apocalyptic number.

228178882851 is a deficient number, since it is larger than the sum of its proper divisors (76059627621).

228178882851 is an equidigital number, since it uses as much as digits as its factorization.

228178882851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76059627620.

The product of its digits is 9175040, while the sum is 60.

The spelling of 228178882851 in words is "two hundred twenty-eight billion, one hundred seventy-eight million, eight hundred eighty-two thousand, eight hundred fifty-one".