197843744142 has 24 divisors (see below), whose sum is σ = 467630668440. Its totient is φ = 59952649680.

The previous prime is 197843744123. The next prime is 197843744191. The reversal of 197843744142 is 241447348791.

197843744142 is a `hidden beast` number, since 1 + 97 + 84 + 37 + 441 + 4 + 2 = 666.

It is a super-2 number, since 2×197843744142² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 499605217 + ... + 499605612.

It is an arithmetic number, because the mean of its divisors is an integer number (19484611185).

Almost surely, 2^197843744142 is an apocalyptic number.

197843744142 is an abundant number, since it is smaller than the sum of its proper divisors (269786924298).

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

197843744142 is a wasteful number, since it uses less digits than its factorization.

197843744142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999210848 (or 999210845 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The spelling of 197843744142 in words is "one hundred ninety-seven billion, eight hundred forty-three million, seven hundred forty-four thousand, one hundred forty-two".