9144434691 has 48 divisors (see below), whose sum is σ = 16678531584. Its totient is φ = 4704175872.

The previous prime is 9144434681. The next prime is 9144434693. The reversal of 9144434691 is 1964344419.

9144434691 is a `hidden beast` number, since 9 + 144 + 43 + 469 + 1 = 666.

It is not a de Polignac number, because 9144434691 - 2¹⁵ = 9144401923 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9144434693) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160981 + ... + 210246.

It is an arithmetic number, because the mean of its divisors is an integer number (347469408).

Almost surely, 2^9144434691 is an apocalyptic number.

9144434691 is a deficient number, since it is larger than the sum of its proper divisors (7534096893).

9144434691 is a wasteful number, since it uses less digits than its factorization.

9144434691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371280 (or 371277 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 9144434691 is about 95626.5375876383. The cubic root of 9144434691 is about 2091.1520926101.

The spelling of 9144434691 in words is "nine billion, one hundred forty-four million, four hundred thirty-four thousand, six hundred ninety-one".