9160909491 has 4 divisors (see below), whose sum is σ = 12214545992. Its totient is φ = 6107272992.

The previous prime is 9160909487. The next prime is 9160909523. The reversal of 9160909491 is 1949090619.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9160909491 - 2² = 9160909487 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 9160909491.

It is not an unprimeable number, because it can be changed into a prime (9160909411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526818246 + ... + 1526818251.

It is an arithmetic number, because the mean of its divisors is an integer number (3053636498).

Almost surely, 2^9160909491 is an apocalyptic number.

9160909491 is a deficient number, since it is larger than the sum of its proper divisors (3053636501).

9160909491 is a wasteful number, since it uses less digits than its factorization.

9160909491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053636500.

The product of its (nonzero) digits is 157464, while the sum is 48.

The square root of 9160909491 is about 95712.6401840426. The cubic root of 9160909491 is about 2092.4071599433.

The spelling of 9160909491 in words is "nine billion, one hundred sixty million, nine hundred nine thousand, four hundred ninety-one".