228607268645172 has 48 divisors (see below), whose sum is σ = 551184106217472. Its totient is φ = 73669260476640.

The previous prime is 228607268645167. The next prime is 228607268645191. The reversal of 228607268645172 is 271546862706822.

It is a happy number.

It is a super-2 number, since 2×228607268645172² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312216048 + ... + 312947399.

It is an arithmetic number, because the mean of its divisors is an integer number (11483002212864).

Almost surely, 2^{228607268645172} is an apocalyptic number.

It is an amenable number.

228607268645172 is an abundant number, since it is smaller than the sum of its proper divisors (322576837572300).

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

228607268645172 is a wasteful number, since it uses less digits than its factorization.

228607268645172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625164468 (or 625164466 counting only the distinct ones).

The product of its (nonzero) digits is 216760320, while the sum is 66.

The spelling of 228607268645172 in words is "two hundred twenty-eight trillion, six hundred seven billion, two hundred sixty-eight million, six hundred forty-five thousand, one hundred seventy-two".