196718811963 has 4 divisors (see below), whose sum is σ = 262291749288. Its totient is φ = 131145874640.

The previous prime is 196718811959. The next prime is 196718812001. The reversal of 196718811963 is 369118817691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 196718811963 - 2² = 196718811959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196718811897 and 196718811906.

It is not an unprimeable number, because it can be changed into a prime (196718811953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32786468658 + ... + 32786468663.

It is an arithmetic number, because the mean of its divisors is an integer number (65572937322).

Almost surely, 2^196718811963 is an apocalyptic number.

196718811963 is a deficient number, since it is larger than the sum of its proper divisors (65572937325).

196718811963 is an equidigital number, since it uses as much as digits as its factorization.

196718811963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65572937324.

The product of its digits is 3919104, while the sum is 60.

The spelling of 196718811963 in words is "one hundred ninety-six billion, seven hundred eighteen million, eight hundred eleven thousand, nine hundred sixty-three".