228267677138 has 6 divisors (see below), whose sum is σ = 342402529221. Its totient is φ = 114133500732.

The previous prime is 228267677069. The next prime is 228267677147. The reversal of 228267677138 is 831776762822.

It can be written as a sum of positive squares in 2 ways, for example, as 171059169649 + 57208507489 = 413593^2 + 239183^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=337837.

It is a super-2 number, since 2×228267677138² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 506756 + ... + 844592.

Almost surely, 2^228267677138 is an apocalyptic number.

228267677138 is a deficient number, since it is larger than the sum of its proper divisors (114134852083).

228267677138 is an frugal number, since it uses more digits than its factorization.

228267677138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675676 (or 337839 counting only the distinct ones).

The product of its digits is 18966528, while the sum is 59.

The spelling of 228267677138 in words is "two hundred twenty-eight billion, two hundred sixty-seven million, six hundred seventy-seven thousand, one hundred thirty-eight".