9813358000640 has 40 divisors (see below), whose sum is σ = 23529059149860. Its totient is φ = 3925343199232.

The previous prime is 9813358000627. The next prime is 9813358000651. The reversal of 9813358000640 is 460008533189.

9813358000640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9763275141376 + 50082859264 = 3124624^2 + 223792^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1916668925 + ... + 1916674044.

Almost surely, 2^{9813358000640} is an apocalyptic number.

It is an amenable number.

9813358000640 is an abundant number, since it is smaller than the sum of its proper divisors (13715701149220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9813358000640 is an equidigital number, since it uses as much as digits as its factorization.

9813358000640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833342992 (or 3833342976 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 9813358000640 in words is "nine trillion, eight hundred thirteen billion, three hundred fifty-eight million, six hundred forty", and thus it is an aban number.