9439236645340 has 48 divisors (see below), whose sum is σ = 20120695217280. Its totient is φ = 3719013696000.

The previous prime is 9439236645329. The next prime is 9439236645379. The reversal of 9439236645340 is 435466329349.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3207955 + ... + 5400874.

It is an arithmetic number, because the mean of its divisors is an integer number (419181150360).

Almost surely, 2^{9439236645340} is an apocalyptic number.

It is an amenable number.

9439236645340 is an abundant number, since it is smaller than the sum of its proper divisors (10681458571940).

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

9439236645340 is a wasteful number, since it uses less digits than its factorization.

9439236645340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8609662 (or 8609660 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 58.

The spelling of 9439236645340 in words is "nine trillion, four hundred thirty-nine billion, two hundred thirty-six million, six hundred forty-five thousand, three hundred forty".