228381144388475 has 72 divisors (see below), whose sum is σ = 310853565348480. Its totient is φ = 166354019619840.

The previous prime is 228381144388457. The next prime is 228381144388519. The reversal of 228381144388475 is 574883441183822.

It is not a de Polignac number, because 228381144388475 - 2¹⁴ = 228381144372091 is a prime.

It is a super-2 number, since 2×228381144388475² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 101585159 + ... + 103808991.

It is an arithmetic number, because the mean of its divisors is an integer number (4317410629840).

Almost surely, 2^{228381144388475} is an apocalyptic number.

228381144388475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228381144388475 is a deficient number, since it is larger than the sum of its proper divisors (82472420960005).

228381144388475 is a wasteful number, since it uses less digits than its factorization.

228381144388475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2224201 (or 2224183 counting only the distinct ones).

The product of its digits is 330301440, while the sum is 68.

The spelling of 228381144388475 in words is "two hundred twenty-eight trillion, three hundred eighty-one billion, one hundred forty-four million, three hundred eighty-eight thousand, four hundred seventy-five".