197935910872 has 32 divisors (see below), whose sum is σ = 424196985600. Its totient is φ = 84819955104.

The previous prime is 197935910857. The next prime is 197935910891. The reversal of 197935910872 is 278019539791.

197935910872 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 197935910872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301629 + ... + 697747.

It is an arithmetic number, because the mean of its divisors is an integer number (13256155800).

Almost surely, 2^197935910872 is an apocalyptic number.

It is an amenable number.

197935910872 is an abundant number, since it is smaller than the sum of its proper divisors (226261074728).

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

197935910872 is a wasteful number, since it uses less digits than its factorization.

197935910872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405055 (or 405051 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 61.

The spelling of 197935910872 in words is "one hundred ninety-seven billion, nine hundred thirty-five million, nine hundred ten thousand, eight hundred seventy-two".