194968913268 has 96 divisors (see below), whose sum is σ = 501800987520. Its totient is φ = 58663260160.

The previous prime is 194968913221. The next prime is 194968913281. The reversal of 194968913268 is 862319869491.

It is a super-4 number, since 4×194968913268⁴ (a number of 46 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 194968913199 and 194968913208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 295930 + ... + 691022.

It is an arithmetic number, because the mean of its divisors is an integer number (5227093620).

Almost surely, 2^194968913268 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 194968913268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250900493760).

194968913268 is an abundant number, since it is smaller than the sum of its proper divisors (306832074252).

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

194968913268 is a wasteful number, since it uses less digits than its factorization.

194968913268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395217 (or 395215 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 66.

The spelling of 194968913268 in words is "one hundred ninety-four billion, nine hundred sixty-eight million, nine hundred thirteen thousand, two hundred sixty-eight".