194094931968 has 392 divisors, whose sum is σ = 665266709088. Its totient is φ = 55443750912.

The previous prime is 194094931957. The next prime is 194094931969. The reversal of 194094931968 is 869139490491.

194094931968 is a `hidden beast` number, since 19 + 40 + 9 + 493 + 1 + 96 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (194094931969) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 41801455 + ... + 41806097.

Almost surely, 2^194094931968 is an apocalyptic number.

194094931968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 194094931968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332633354544).

194094931968 is an abundant number, since it is smaller than the sum of its proper divisors (471171777120).

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

194094931968 is an frugal number, since it uses more digits than its factorization.

194094931968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4694 (or 4655 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 63.

The spelling of 194094931968 in words is "one hundred ninety-four billion, ninety-four million, nine hundred thirty-one thousand, nine hundred sixty-eight".