191134326239 has 8 divisors (see below), whose sum is σ = 201295017840. Its totient is φ = 180983733696.

The previous prime is 191134326221. The next prime is 191134326241. The reversal of 191134326239 is 932623431191.

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

It is a cyclic number.

It is not a de Polignac number, because 191134326239 - 2¹² = 191134322143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 191134326239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191134326269) 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, 2485892 + ... + 2561625.

It is an arithmetic number, because the mean of its divisors is an integer number (25161877230).

Almost surely, 2^191134326239 is an apocalyptic number.

191134326239 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

191134326239 is a deficient number, since it is larger than the sum of its proper divisors (10160691601).

191134326239 is a wasteful number, since it uses less digits than its factorization.

191134326239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049529.

The product of its digits is 209952, while the sum is 44.

The spelling of 191134326239 in words is "one hundred ninety-one billion, one hundred thirty-four million, three hundred twenty-six thousand, two hundred thirty-nine".