227693648840 has 320 divisors, whose sum is σ = 619633186560. Its totient is φ = 75249699840.

The previous prime is 227693648801. The next prime is 227693648893. The reversal of 227693648840 is 48846396722.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 227693648840.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 329512895 + ... + 329513585.

It is an arithmetic number, because the mean of its divisors is an integer number (1936353708).

Almost surely, 2^227693648840 is an apocalyptic number.

227693648840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227693648840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309816593280).

227693648840 is an abundant number, since it is smaller than the sum of its proper divisors (391939537720).

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

227693648840 is an equidigital number, since it uses as much as digits as its factorization.

227693648840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 59.

The spelling of 227693648840 in words is "two hundred twenty-seven billion, six hundred ninety-three million, six hundred forty-eight thousand, eight hundred forty".