197871742068 has 192 divisors, whose sum is σ = 620289159168. Its totient is φ = 47412449280.

The previous prime is 197871742039. The next prime is 197871742153. The reversal of 197871742068 is 860247178791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24224121 + ... + 24232287.

It is an arithmetic number, because the mean of its divisors is an integer number (3230672704).

Almost surely, 2^197871742068 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 197871742068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310144579584).

197871742068 is an abundant number, since it is smaller than the sum of its proper divisors (422417417100).

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

197871742068 is a wasteful number, since it uses less digits than its factorization.

197871742068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10222 (or 10220 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 60.

It can be divided in two parts, 197871 and 742068, that added together give a palindrome (939939).

The spelling of 197871742068 in words is "one hundred ninety-seven billion, eight hundred seventy-one million, seven hundred forty-two thousand, sixty-eight".