8404745091 has 16 divisors (see below), whose sum is σ = 11292856320. Its totient is φ = 5560044480.

The previous prime is 8404745081. The next prime is 8404745099. The reversal of 8404745091 is 1905474048.

It is not a de Polignac number, because 8404745091 - 2⁵ = 8404745059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8404745099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216426 + ... + 252288.

It is an arithmetic number, because the mean of its divisors is an integer number (705803520).

Almost surely, 2^8404745091 is an apocalyptic number.

8404745091 is a deficient number, since it is larger than the sum of its proper divisors (2888111229).

8404745091 is a wasteful number, since it uses less digits than its factorization.

8404745091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36466.

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 8404745091 is about 91677.3968380429. The cubic root of 8404745091 is about 2033.1754108799.

The spelling of 8404745091 in words is "eight billion, four hundred four million, seven hundred forty-five thousand, ninety-one".