9273738281920 has 56 divisors (see below), whose sum is σ = 25237816330464. Its totient is φ = 3179567410176.

The previous prime is 9273738281917. The next prime is 9273738281921. The reversal of 9273738281920 is 291828373729.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9273738281921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2070028627 + ... + 2070033106.

Almost surely, 2^{9273738281920} is an apocalyptic number.

It is an amenable number.

9273738281920 is an abundant number, since it is smaller than the sum of its proper divisors (15964078048544).

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

9273738281920 is a wasteful number, since it uses less digits than its factorization.

9273738281920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4140061757 (or 4140061747 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 9273738281920 in words is "nine trillion, two hundred seventy-three billion, seven hundred thirty-eight million, two hundred eighty-one thousand, nine hundred twenty".