197829731874 has 32 divisors (see below), whose sum is σ = 408448364544. Its totient is φ = 63812028240.

The previous prime is 197829731849. The next prime is 197829731941. The reversal of 197829731874 is 478137928791.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4816107 + ... + 4857009.

It is an arithmetic number, because the mean of its divisors is an integer number (12764011392).

Almost surely, 2^197829731874 is an apocalyptic number.

197829731874 is an abundant number, since it is smaller than the sum of its proper divisors (210618632670).

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

197829731874 is a wasteful number, since it uses less digits than its factorization.

197829731874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66942.

The product of its digits is 42674688, while the sum is 66.

The spelling of 197829731874 in words is "one hundred ninety-seven billion, eight hundred twenty-nine million, seven hundred thirty-one thousand, eight hundred seventy-four".