9404745091 has 4 divisors (see below), whose sum is σ = 10748280112. Its totient is φ = 8061210072.

The previous prime is 9404745067. The next prime is 9404745101. The reversal of 9404745091 is 1905474049.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1905474049 = 1091 ⋅1746539.

It is a cyclic number.

It is not a de Polignac number, because 9404745091 - 2⁵ = 9404745059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9404745061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671767500 + ... + 671767513.

It is an arithmetic number, because the mean of its divisors is an integer number (2687070028).

Almost surely, 2^9404745091 is an apocalyptic number.

9404745091 is a deficient number, since it is larger than the sum of its proper divisors (1343535021).

9404745091 is a wasteful number, since it uses less digits than its factorization.

9404745091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343535020.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 9404745091 is about 96978.0649992564. The cubic root of 9404745091 is about 2110.8093516919.

The spelling of 9404745091 in words is "nine billion, four hundred four million, seven hundred forty-five thousand, ninety-one".