196491779162 has 16 divisors (see below), whose sum is σ = 345946917120. Its totient is φ = 81934795728.

The previous prime is 196491779149. The next prime is 196491779173. The reversal of 196491779162 is 261977194691.

It is a junction number, because it is equal to n+sod(n) for n = 196491779095 and 196491779104.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 189663362 + ... + 189664397.

It is an arithmetic number, because the mean of its divisors is an integer number (21621682320).

Almost surely, 2^196491779162 is an apocalyptic number.

196491779162 is a deficient number, since it is larger than the sum of its proper divisors (149455137958).

196491779162 is a wasteful number, since it uses less digits than its factorization.

196491779162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379327805.

The product of its digits is 10287648, while the sum is 62.

The spelling of 196491779162 in words is "one hundred ninety-six billion, four hundred ninety-one million, seven hundred seventy-nine thousand, one hundred sixty-two".