228578668926 has 32 divisors (see below), whose sum is σ = 469016333856. Its totient is φ = 74222016000.

The previous prime is 228578668889. The next prime is 228578668949. The reversal of 228578668926 is 629866875822.

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, 540255 + ... + 865466.

It is an arithmetic number, because the mean of its divisors is an integer number (14656760433).

Almost surely, 2^228578668926 is an apocalyptic number.

228578668926 is an abundant number, since it is smaller than the sum of its proper divisors (240437664930).

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

228578668926 is a wasteful number, since it uses less digits than its factorization.

228578668926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406428.

The product of its digits is 278691840, while the sum is 69.

The spelling of 228578668926 in words is "two hundred twenty-eight billion, five hundred seventy-eight million, six hundred sixty-eight thousand, nine hundred twenty-six".