194709688171140 has 48 divisors (see below), whose sum is σ = 562773808396800. Its totient is φ = 50247661463040.

The previous prime is 194709688171127. The next prime is 194709688171217. The reversal of 194709688171140 is 41171886907491.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52341312165 + ... + 52341315884.

It is an arithmetic number, because the mean of its divisors is an integer number (11724454341600).

Almost surely, 2^{194709688171140} is an apocalyptic number.

194709688171140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194709688171140 is an abundant number, since it is smaller than the sum of its proper divisors (368064120225660).

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

194709688171140 is a wasteful number, since it uses less digits than its factorization.

194709688171140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104682628092 (or 104682628090 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 66.

The spelling of 194709688171140 in words is "one hundred ninety-four trillion, seven hundred nine billion, six hundred eighty-eight million, one hundred seventy-one thousand, one hundred forty".