9910010091 has 8 divisors (see below), whose sum is σ = 13226142160. Its totient is φ = 6600275712.

The previous prime is 9910010087. The next prime is 9910010171. The reversal of 9910010091 is 1900100199.

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

It is not a de Polignac number, because 9910010091 - 2² = 9910010087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9910010021) 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, 1595806 + ... + 1602003.

It is an arithmetic number, because the mean of its divisors is an integer number (1653267770).

Almost surely, 2^9910010091 is an apocalyptic number.

9910010091 is a deficient number, since it is larger than the sum of its proper divisors (3316132069).

9910010091 is a wasteful number, since it uses less digits than its factorization.

9910010091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198845.

The product of its (nonzero) digits is 729, while the sum is 30.

The square root of 9910010091 is about 99549.0336015373. The cubic root of 9910010091 is about 2147.9526275752.

The spelling of 9910010091 in words is "nine billion, nine hundred ten million, ten thousand, ninety-one".