197921039298 has 16 divisors (see below), whose sum is σ = 395870498976. Its totient is φ = 65968943040.

The previous prime is 197921039297. The next prime is 197921039311. The reversal of 197921039298 is 892930129791.

It is not an unprimeable number, because it can be changed into a prime (197921039293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093111 + ... + 1261242.

It is an arithmetic number, because the mean of its divisors is an integer number (24741906186).

Almost surely, 2^197921039298 is an apocalyptic number.

197921039298 is an abundant number, since it is smaller than the sum of its proper divisors (197949459678).

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

197921039298 is a wasteful number, since it uses less digits than its factorization.

197921039298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368369.

The product of its (nonzero) digits is 4408992, while the sum is 60.

The spelling of 197921039298 in words is "one hundred ninety-seven billion, nine hundred twenty-one million, thirty-nine thousand, two hundred ninety-eight".