228520713678 has 8 divisors (see below), whose sum is σ = 457041427368. Its totient is φ = 76173571224.

The previous prime is 228520713653. The next prime is 228520713697. The reversal of 228520713678 is 876317025822.

It is a sphenic number, since it is the product of 3 distinct primes.

228520713678 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 228520713678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19043392801 + ... + 19043392812.

It is an arithmetic number, because the mean of its divisors is an integer number (57130178421).

Almost surely, 2^228520713678 is an apocalyptic number.

228520713678 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

228520713678 is a wasteful number, since it uses less digits than its factorization.

228520713678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38086785618.

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 228520713678 in words is "two hundred twenty-eight billion, five hundred twenty million, seven hundred thirteen thousand, six hundred seventy-eight".