197885244456 has 128 divisors (see below), whose sum is σ = 555328742400. Its totient is φ = 65285196480.

The previous prime is 197885244407. The next prime is 197885244503. The reversal of 197885244456 is 654442588791.

It is a happy number.

197885244456 is a `hidden beast` number, since 1 + 97 + 8 + 8 + 52 + 44 + 456 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 197885244393 and 197885244402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30111651 + ... + 30118221.

It is an arithmetic number, because the mean of its divisors is an integer number (4338505800).

Almost surely, 2^197885244456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197885244456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277664371200).

197885244456 is an abundant number, since it is smaller than the sum of its proper divisors (357443497944).

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

197885244456 is a wasteful number, since it uses less digits than its factorization.

197885244456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7996 (or 7986 counting only the distinct ones).

The product of its digits is 77414400, while the sum is 63.

The spelling of 197885244456 in words is "one hundred ninety-seven billion, eight hundred eighty-five million, two hundred forty-four thousand, four hundred fifty-six".