9191141639141 has 16 divisors (see below), whose sum is σ = 11459524720128. Its totient is φ = 7161654150000.

The previous prime is 9191141639063. The next prime is 9191141639177. The reversal of 9191141639141 is 1419361411919.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-9191141639141 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 9191141639141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9191141839141) 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, 252215 + ... + 4294868.

It is an arithmetic number, because the mean of its divisors is an integer number (716220295008).

Almost surely, 2^{9191141639141} is an apocalyptic number.

It is an amenable number.

9191141639141 is a deficient number, since it is larger than the sum of its proper divisors (2268383080987).

9191141639141 is a wasteful number, since it uses less digits than its factorization.

9191141639141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4573352.

The product of its digits is 209952, while the sum is 50.

The spelling of 9191141639141 in words is "nine trillion, one hundred ninety-one billion, one hundred forty-one million, six hundred thirty-nine thousand, one hundred forty-one".