194914486368 has 72 divisors (see below), whose sum is σ = 633472087248. Its totient is φ = 55689852672.

The previous prime is 194914486339. The next prime is 194914486397. The reversal of 194914486368 is 863684419491.

194914486368 is a `hidden beast` number, since 1 + 9 + 4 + 91 + 4 + 486 + 3 + 68 = 666.

It is an interprime number because it is at equal distance from previous prime (194914486339) and next prime (194914486397).

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×194914486368² (a number of 23 digits) contains 22 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48339871 + ... + 48343902.

It is an arithmetic number, because the mean of its divisors is an integer number (8798223434).

Almost surely, 2^194914486368 is an apocalyptic number.

194914486368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

194914486368 is an abundant number, since it is smaller than the sum of its proper divisors (438557600880).

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

194914486368 is a wasteful number, since it uses less digits than its factorization.

194914486368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96683796 (or 96683785 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 63.

The spelling of 194914486368 in words is "one hundred ninety-four billion, nine hundred fourteen million, four hundred eighty-six thousand, three hundred sixty-eight".