9191516948131 has 8 divisors (see below), whose sum is σ = 10509451801184. Its totient is φ = 7874797345920.

The previous prime is 9191516948093. The next prime is 9191516948167. The reversal of 9191516948131 is 1318496151919.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9191516948131 is a prime.

It is a super-2 number, since 2×9191516948131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9191516948191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303796500 + ... + 303826753.

It is an arithmetic number, because the mean of its divisors is an integer number (1313681475148).

Almost surely, 2^{9191516948131} is an apocalyptic number.

9191516948131 is a deficient number, since it is larger than the sum of its proper divisors (1317934853053).

9191516948131 is a wasteful number, since it uses less digits than its factorization.

9191516948131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607625421.

The product of its digits is 2099520, while the sum is 58.

The spelling of 9191516948131 in words is "nine trillion, one hundred ninety-one billion, five hundred sixteen million, nine hundred forty-eight thousand, one hundred thirty-one".