196821196288 has 80 divisors (see below), whose sum is σ = 406835675136. Its totient is φ = 95026821120.

The previous prime is 196821196277. The next prime is 196821196309. The reversal of 196821196288 is 882691128691.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

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, 7335345 + ... + 7362127.

Almost surely, 2^196821196288 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 196821196288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203417837568).

196821196288 is an abundant number, since it is smaller than the sum of its proper divisors (210014478848).

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

196821196288 is an equidigital number, since it uses as much as digits as its factorization.

196821196288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27295 (or 27279 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 61.

The spelling of 196821196288 in words is "one hundred ninety-six billion, eight hundred twenty-one million, one hundred ninety-six thousand, two hundred eighty-eight".