196308978908 has 54 divisors (see below), whose sum is σ = 417067367976. Its totient is φ = 80462293296.

The previous prime is 196308978907. The next prime is 196308978941. The reversal of 196308978908 is 809879803691.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196308978907) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 29744993 + ... + 29751591.

Almost surely, 2^196308978908 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196308978908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208533683988).

196308978908 is an abundant number, since it is smaller than the sum of its proper divisors (220758389068).

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

196308978908 is an frugal number, since it uses more digits than its factorization.

196308978908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13239 (or 6631 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 68.

The spelling of 196308978908 in words is "one hundred ninety-six billion, three hundred eight million, nine hundred seventy-eight thousand, nine hundred eight".