228705190680 has 64 divisors (see below), whose sum is σ = 686191484160. Its totient is φ = 60981303168.

The previous prime is 228705190673. The next prime is 228705190697. The reversal of 228705190680 is 86091507822.

228705190680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1034859 + ... + 1236261.

It is an arithmetic number, because the mean of its divisors is an integer number (10721741940).

Almost surely, 2^228705190680 is an apocalyptic number.

228705190680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228705190680 is an abundant number, since it is smaller than the sum of its proper divisors (457486293480).

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

228705190680 is a wasteful number, since it uses less digits than its factorization.

228705190680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210880 (or 210876 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 228705190680 in words is "two hundred twenty-eight billion, seven hundred five million, one hundred ninety thousand, six hundred eighty".