196201978142 has 16 divisors (see below), whose sum is σ = 302996163120. Its totient is φ = 95216223168.

The previous prime is 196201978123. The next prime is 196201978183. The reversal of 196201978142 is 241879102691.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3211028 + ... + 3271559.

It is an arithmetic number, because the mean of its divisors is an integer number (18937260195).

Almost surely, 2^196201978142 is an apocalyptic number.

196201978142 is a deficient number, since it is larger than the sum of its proper divisors (106794184978).

196201978142 is a wasteful number, since it uses less digits than its factorization.

196201978142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6483035.

The product of its (nonzero) digits is 435456, while the sum is 50.

The spelling of 196201978142 in words is "one hundred ninety-six billion, two hundred one million, nine hundred seventy-eight thousand, one hundred forty-two".