228951971298 has 54 divisors (see below), whose sum is σ = 513890199459. Its totient is φ = 73666744704.

The previous prime is 228951971293. The next prime is 228951971299. The reversal of 228951971298 is 892179159822.

228951971298 is a `hidden beast` number, since 2 + 28 + 9 + 519 + 7 + 1 + 2 + 98 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 170877237129 + 58074734169 = 413373^2 + 240987^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=338343.

It is a super-2 number, since 2×228951971298² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228951971293) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 58869738 + ... + 58873626.

Almost surely, 2^228951971298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228951971298

228951971298 is an abundant number, since it is smaller than the sum of its proper divisors (284938228161).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228951971298 is an frugal number, since it uses more digits than its factorization.

228951971298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7844 (or 3923 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 63.

The spelling of 228951971298 in words is "two hundred twenty-eight billion, nine hundred fifty-one million, nine hundred seventy-one thousand, two hundred ninety-eight".