40320134447 has 8 divisors (see below), whose sum is σ = 41184460800. Its totient is φ = 39456076984.

The previous prime is 40320134443. The next prime is 40320134467. The reversal of 40320134447 is 74443102304.

40320134447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40320134447 - 2² = 40320134443 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 (40320134443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251954 + ... + 379632.

It is an arithmetic number, because the mean of its divisors is an integer number (5148057600).

Almost surely, 2^40320134447 is an apocalyptic number.

40320134447 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

40320134447 is a deficient number, since it is larger than the sum of its proper divisors (864326353).

40320134447 is a wasteful number, since it uses less digits than its factorization.

40320134447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134445.

The product of its (nonzero) digits is 32256, while the sum is 32.

The spelling of 40320134447 in words is "forty billion, three hundred twenty million, one hundred thirty-four thousand, four hundred forty-seven".