9818394140094 has 16 divisors (see below), whose sum is σ = 19754373840768. Its totient is φ = 3253200453272.

The previous prime is 9818394140081. The next prime is 9818394140117. The reversal of 9818394140094 is 4900414938189.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4899397272 + ... + 4899399275.

It is an arithmetic number, because the mean of its divisors is an integer number (1234648365048).

Almost surely, 2^{9818394140094} is an apocalyptic number.

9818394140094 is an abundant number, since it is smaller than the sum of its proper divisors (9935979700674).

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

9818394140094 is a wasteful number, since it uses less digits than its factorization.

9818394140094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9798796719.

The product of its (nonzero) digits is 8957952, while the sum is 60.

The spelling of 9818394140094 in words is "nine trillion, eight hundred eighteen billion, three hundred ninety-four million, one hundred forty thousand, ninety-four".