9813440007 has 64 divisors (see below), whose sum is σ = 17216640000. Its totient is φ = 5405387904.

The previous prime is 9813440003. The next prime is 9813440023. The reversal of 9813440007 is 7000443189.

It is a happy number.

It is not a de Polignac number, because 9813440007 - 2² = 9813440003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9813440003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4674244 + ... + 4676342.

It is an arithmetic number, because the mean of its divisors is an integer number (269010000).

Almost surely, 2^9813440007 is an apocalyptic number.

9813440007 is a deficient number, since it is larger than the sum of its proper divisors (7403199993).

9813440007 is a wasteful number, since it uses less digits than its factorization.

9813440007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997 (or 2991 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 9813440007 is about 99062.8083944726. The cubic root of 9813440007 is about 2140.9527890365.

The spelling of 9813440007 in words is "nine billion, eight hundred thirteen million, four hundred forty thousand, seven".