196398791574 has 36 divisors (see below), whose sum is σ = 394969719924. Its totient is φ = 65106227088.

The previous prime is 196398791531. The next prime is 196398791579. The reversal of 196398791574 is 475197893691.

It is a junction number, because it is equal to n+sod(n) for n = 196398791499 and 196398791508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196398791579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 259443204 + ... + 259443960.

It is an arithmetic number, because the mean of its divisors is an integer number (10971381109).

Almost surely, 2^196398791574 is an apocalyptic number.

196398791574 is an abundant number, since it is smaller than the sum of its proper divisors (198570928350).

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

196398791574 is an frugal number, since it uses more digits than its factorization.

196398791574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997 (or 1001 counting only the distinct ones).

The product of its digits is 102876480, while the sum is 69.

The spelling of 196398791574 in words is "one hundred ninety-six billion, three hundred ninety-eight million, seven hundred ninety-one thousand, five hundred seventy-four".