9954845711893 has 4 divisors (see below), whose sum is σ = 9966970981548. Its totient is φ = 9942720442240.

The previous prime is 9954845711861. The next prime is 9954845711929. The reversal of 9954845711893 is 3981175484599.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4073284624644 + 5881561087249 = 2018238^2 + 2425193^2 .

It is a cyclic number.

It is not a de Polignac number, because 9954845711893 - 2⁵ = 9954845711861 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 (9954845711803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6062633596 + ... + 6062635237.

It is an arithmetic number, because the mean of its divisors is an integer number (2491742745387).

Almost surely, 2^{9954845711893} is an apocalyptic number.

It is an amenable number.

9954845711893 is a deficient number, since it is larger than the sum of its proper divisors (12125269655).

9954845711893 is a wasteful number, since it uses less digits than its factorization.

9954845711893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12125269654.

The product of its digits is 391910400, while the sum is 73.

The spelling of 9954845711893 in words is "nine trillion, nine hundred fifty-four billion, eight hundred forty-five million, seven hundred eleven thousand, eight hundred ninety-three".