9913911091 has 8 divisors (see below), whose sum is σ = 11636405600. Its totient is φ = 8267971968.

The previous prime is 9913911071. The next prime is 9913911101. The reversal of 9913911091 is 1901193199.

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 9913911091 - 2¹⁵ = 9913878323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9913911001) 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, 19138566 + ... + 19139083.

It is an arithmetic number, because the mean of its divisors is an integer number (1454550700).

Almost surely, 2^9913911091 is an apocalyptic number.

9913911091 is a deficient number, since it is larger than the sum of its proper divisors (1722494509).

9913911091 is a wasteful number, since it uses less digits than its factorization.

9913911091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38277693.

The product of its (nonzero) digits is 19683, while the sum is 43.

The square root of 9913911091 is about 99568.6250331900. The cubic root of 9913911091 is about 2148.2344323328.

The spelling of 9913911091 in words is "nine billion, nine hundred thirteen million, nine hundred eleven thousand, ninety-one".