9191868941 has 8 divisors (see below), whose sum is σ = 9742861440. Its totient is φ = 8642020288.

The previous prime is 9191868923. The next prime is 9191868943. The reversal of 9191868941 is 1498681919.

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 9191868941 - 2¹⁰ = 9191867917 is a prime.

It is a super-2 number, since 2×9191868941² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9191868943) 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, 269381 + ... + 301578.

It is an arithmetic number, because the mean of its divisors is an integer number (1217857680).

Almost surely, 2^9191868941 is an apocalyptic number.

It is an amenable number.

9191868941 is a deficient number, since it is larger than the sum of its proper divisors (550992499).

9191868941 is a wasteful number, since it uses less digits than its factorization.

9191868941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571923.

The product of its digits is 1119744, while the sum is 56.

The square root of 9191868941 is about 95874.2350217200. The cubic root of 9191868941 is about 2094.7616181926.

The spelling of 9191868941 in words is "nine billion, one hundred ninety-one million, eight hundred sixty-eight thousand, nine hundred forty-one".