194782967871 has 8 divisors (see below), whose sum is σ = 260231088000. Its totient is φ = 129595079832.

The previous prime is 194782967851. The next prime is 194782967881. The reversal of 194782967871 is 178769287491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 194782967871 - 2⁵ = 194782967839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 194782967796 and 194782967805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194782967851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65056275 + ... + 65059268.

It is an arithmetic number, because the mean of its divisors is an integer number (32528886000).

Almost surely, 2^194782967871 is an apocalyptic number.

194782967871 is a deficient number, since it is larger than the sum of its proper divisors (65448120129).

194782967871 is a wasteful number, since it uses less digits than its factorization.

194782967871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130116045.

The product of its digits is 85349376, while the sum is 69.

The spelling of 194782967871 in words is "one hundred ninety-four billion, seven hundred eighty-two million, nine hundred sixty-seven thousand, eight hundred seventy-one".