196849398680064 has 640 divisors, whose sum is σ = 642457440092160. Its totient is φ = 59140797235200.

The previous prime is 196849398679943. The next prime is 196849398680093. The reversal of 196849398680064 is 460086893948691.

196849398680064 is a `hidden beast` number, since 1 + 9 + 6 + 8 + 493 + 9 + 8 + 68 + 0 + 0 + 64 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1501787649 + ... + 1501918719.

It is an arithmetic number, because the mean of its divisors is an integer number (1003839750144).

Almost surely, 2^{196849398680064} 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 196849398680064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321228720046080).

196849398680064 is an abundant number, since it is smaller than the sum of its proper divisors (445608041412096).

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

196849398680064 is a wasteful number, since it uses less digits than its factorization.

196849398680064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131309 (or 131287 counting only the distinct ones).

The product of its (nonzero) digits is 3869835264, while the sum is 81.

The spelling of 196849398680064 in words is "one hundred ninety-six trillion, eight hundred forty-nine billion, three hundred ninety-eight million, six hundred eighty thousand, sixty-four".