194071019291 has 16 divisors (see below), whose sum is σ = 200794733568. Its totient is φ = 187376772000.

The previous prime is 194071019257. The next prime is 194071019309. The reversal of 194071019291 is 192910170491.

It is not a de Polignac number, because 194071019291 - 2³⁰ = 192997277467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194071015291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30718865 + ... + 30725181.

It is an arithmetic number, because the mean of its divisors is an integer number (12549670848).

Almost surely, 2^194071019291 is an apocalyptic number.

194071019291 is a deficient number, since it is larger than the sum of its proper divisors (6723714277).

194071019291 is a wasteful number, since it uses less digits than its factorization.

194071019291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8482.

The product of its (nonzero) digits is 40824, while the sum is 44.

The spelling of 194071019291 in words is "one hundred ninety-four billion, seventy-one million, nineteen thousand, two hundred ninety-one".