9431404645 has 8 divisors (see below), whose sum is σ = 12188276856. Its totient is φ = 6964729536.

The previous prime is 9431404603. The next prime is 9431404649. The reversal of 9431404645 is 5464041349.

It can be written as a sum of positive squares in 4 ways, for example, as 516834756 + 8914569889 = 22734^2 + 94417^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9431404645 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9431404598 and 9431404607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9431404649) 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, 72549202 + ... + 72549331.

It is an arithmetic number, because the mean of its divisors is an integer number (1523534607).

Almost surely, 2^9431404645 is an apocalyptic number.

It is an amenable number.

9431404645 is a deficient number, since it is larger than the sum of its proper divisors (2756872211).

9431404645 is a wasteful number, since it uses less digits than its factorization.

9431404645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145098551.

The product of its (nonzero) digits is 207360, while the sum is 40.

The square root of 9431404645 is about 97115.4191928347. The cubic root of 9431404645 is about 2112.8019680610.

The spelling of 9431404645 in words is "nine billion, four hundred thirty-one million, four hundred four thousand, six hundred forty-five".