195421936754688 has 1344 divisors, whose sum is σ = 675069268746240. Its totient is φ = 49893419778048.

The previous prime is 195421936754591. The next prime is 195421936754747. The reversal of 195421936754688 is 886457639124591.

It is a tau number, because it is divible by the number of its divisors (1344).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 38415947281 + ... + 38415952367.

Almost surely, 2^{195421936754688} 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 195421936754688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337534634373120).

195421936754688 is an abundant number, since it is smaller than the sum of its proper divisors (479647331991552).

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

195421936754688 is a wasteful number, since it uses less digits than its factorization.

195421936754688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5245 (or 5214 counting only the distinct ones).

The product of its digits is 3135283200, while the sum is 78.

The spelling of 195421936754688 in words is "one hundred ninety-five trillion, four hundred twenty-one billion, nine hundred thirty-six million, seven hundred fifty-four thousand, six hundred eighty-eight".