196781847468 has 12 divisors (see below), whose sum is σ = 459157644120. Its totient is φ = 65593949152.

The previous prime is 196781847467. The next prime is 196781847487. The reversal of 196781847468 is 864748187691.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×196781847468² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (196781847467) 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, 8199243633 + ... + 8199243656.

It is an arithmetic number, because the mean of its divisors is an integer number (38263137010).

Almost surely, 2^196781847468 is an apocalyptic number.

It is an amenable number.

196781847468 is an abundant number, since it is smaller than the sum of its proper divisors (262375796652).

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

196781847468 is a wasteful number, since it uses less digits than its factorization.

196781847468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16398487296 (or 16398487294 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 69.

The spelling of 196781847468 in words is "one hundred ninety-six billion, seven hundred eighty-one million, eight hundred forty-seven thousand, four hundred sixty-eight".