197871245228 has 6 divisors (see below), whose sum is σ = 346274679156. Its totient is φ = 98935622612.

The previous prime is 197871245203. The next prime is 197871245233. The reversal of 197871245228 is 822542178791.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24733905650 + ... + 24733905657.

It is an arithmetic number, because the mean of its divisors is an integer number (57712446526).

Almost surely, 2^197871245228 is an apocalyptic number.

It is an amenable number.

197871245228 is a deficient number, since it is larger than the sum of its proper divisors (148403433928).

197871245228 is a wasteful number, since it uses less digits than its factorization.

197871245228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49467811311 (or 49467811309 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 56.

The spelling of 197871245228 in words is "one hundred ninety-seven billion, eight hundred seventy-one million, two hundred forty-five thousand, two hundred twenty-eight".