9494931805920 has 288 divisors, whose sum is σ = 36656192926080. Its totient is φ = 2301801546240.

The previous prime is 9494931805889. The next prime is 9494931805927. The reversal of 9494931805920 is 295081394949.

9494931805920 is a `hidden beast` number, since 9 + 4 + 9 + 4 + 9 + 31 + 8 + 0 + 592 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9494931805927) 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, 10672830 + ... + 11528189.

It is an arithmetic number, because the mean of its divisors is an integer number (127278447660).

Almost surely, 2^{9494931805920} is an apocalyptic number.

9494931805920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9494931805920 is an abundant number, since it is smaller than the sum of its proper divisors (27161261120160).

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

9494931805920 is a wasteful number, since it uses less digits than its factorization.

9494931805920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22201060 (or 22201040 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 63.

The spelling of 9494931805920 in words is "nine trillion, four hundred ninety-four billion, nine hundred thirty-one million, eight hundred five thousand, nine hundred twenty".