9509966841373 has 4 divisors (see below), whose sum is σ = 9511712115100. Its totient is φ = 9508221567648.

The previous prime is 9509966841367. The next prime is 9509966841469. The reversal of 9509966841373 is 3731486699059.

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 1816516319524 + 7693450521849 = 1347782^2 + 2773707^2 .

It is a cyclic number.

It is not a de Polignac number, because 9509966841373 - 2²⁹ = 9509429970461 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 (9509966841073) 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, 872628690 + ... + 872639587.

It is an arithmetic number, because the mean of its divisors is an integer number (2377928028775).

Almost surely, 2^{9509966841373} is an apocalyptic number.

It is an amenable number.

9509966841373 is a deficient number, since it is larger than the sum of its proper divisors (1745273727).

9509966841373 is a wasteful number, since it uses less digits than its factorization.

9509966841373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745273726.

The product of its (nonzero) digits is 264539520, while the sum is 70.

The spelling of 9509966841373 in words is "nine trillion, five hundred nine billion, nine hundred sixty-six million, eight hundred forty-one thousand, three hundred seventy-three".