9349742479440 has 80 divisors (see below), whose sum is σ = 31619129121216. Its totient is φ = 2266604236800.

The previous prime is 9349742479439. The next prime is 9349742479513. The reversal of 9349742479440 is 449742479439.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1770781921 + ... + 1770787200.

Almost surely, 2^{9349742479440} is an apocalyptic number.

It is an amenable number.

9349742479440 is an abundant number, since it is smaller than the sum of its proper divisors (22269386641776).

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

9349742479440 is a wasteful number, since it uses less digits than its factorization.

9349742479440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541569148 (or 3541569142 counting only the distinct ones).

The product of its (nonzero) digits is 219469824, while the sum is 66.

The spelling of 9349742479440 in words is "nine trillion, three hundred forty-nine billion, seven hundred forty-two million, four hundred seventy-nine thousand, four hundred forty".