191694391314 has 8 divisors (see below), whose sum is σ = 383388782640. Its totient is φ = 63898130436.

The previous prime is 191694391303. The next prime is 191694391321. The reversal of 191694391314 is 413193496191.

191694391314 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

191694391314 is an admirable number.

It is a super-2 number, since 2×191694391314² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15974532604 + ... + 15974532615.

It is an arithmetic number, because the mean of its divisors is an integer number (47923597830).

Almost surely, 2^191694391314 is an apocalyptic number.

191694391314 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

191694391314 is a wasteful number, since it uses less digits than its factorization.

191694391314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31949065224.

The product of its digits is 629856, while the sum is 51.

The spelling of 191694391314 in words is "one hundred ninety-one billion, six hundred ninety-four million, three hundred ninety-one thousand, three hundred fourteen".