228617364508 has 24 divisors (see below), whose sum is σ = 430869090848. Its totient is φ = 105512452416.

The previous prime is 228617364491. The next prime is 228617364509. The reversal of 228617364508 is 805463716822.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228617364509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2748985 + ... + 2830927.

Almost surely, 2^228617364508 is an apocalyptic number.

It is an amenable number.

228617364508 is a deficient number, since it is larger than the sum of its proper divisors (202251726340).

228617364508 is a wasteful number, since it uses less digits than its factorization.

228617364508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135613 (or 135611 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 228617364508 in words is "two hundred twenty-eight billion, six hundred seventeen million, three hundred sixty-four thousand, five hundred eight".