8440591324732 has 96 divisors (see below), whose sum is σ = 17214079292928. Its totient is φ = 3546603650304.

The previous prime is 8440591324729. The next prime is 8440591324747. The reversal of 8440591324732 is 2374231950448.

It is a super-2 number, since 2×8440591324732² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8440591324732.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 438075763 + ... + 438095029.

It is an arithmetic number, because the mean of its divisors is an integer number (179313325968).

Almost surely, 2^{8440591324732} is an apocalyptic number.

It is an amenable number.

8440591324732 is an abundant number, since it is smaller than the sum of its proper divisors (8773487968196).

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

8440591324732 is a wasteful number, since it uses less digits than its factorization.

8440591324732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20435 (or 20433 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 8440591324732 in words is "eight trillion, four hundred forty billion, five hundred ninety-one million, three hundred twenty-four thousand, seven hundred thirty-two".