9845940973 has 12 divisors (see below), whose sum is σ = 10918186524. Its totient is φ = 8871632000.

The previous prime is 9845940967. The next prime is 9845940977. The reversal of 9845940973 is 3790495489.

It can be written as a sum of positive squares in 2 ways, for example, as 116683204 + 9729257769 = 10802^2 + 98637^2 .

It is not a de Polignac number, because 9845940973 - 2¹³ = 9845932781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9845940977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346378 + ... + 373723.

It is an arithmetic number, because the mean of its divisors is an integer number (909848877).

Almost surely, 2^9845940973 is an apocalyptic number.

It is an amenable number.

9845940973 is a deficient number, since it is larger than the sum of its proper divisors (1072245551).

9845940973 is a wasteful number, since it uses less digits than its factorization.

9845940973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720236 (or 720225 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The square root of 9845940973 is about 99226.7150166728. The cubic root of 9845940973 is about 2143.3137130286.

The spelling of 9845940973 in words is "nine billion, eight hundred forty-five million, nine hundred forty thousand, nine hundred seventy-three".