32444323861840 has 160 divisors (see below), whose sum is σ = 84303341740800. Its totient is φ = 11509409894400.

The previous prime is 32444323861727. The next prime is 32444323861877. The reversal of 32444323861840 is 4816832344423.

It is a super-2 number, since 2×32444323861840² (a number of 28 digits) contains 22 as substring.

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, 978725586 + ... + 978758734.

It is an arithmetic number, because the mean of its divisors is an integer number (526895885880).

Almost surely, 2^{32444323861840} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32444323861840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42151670870400).

32444323861840 is an abundant number, since it is smaller than the sum of its proper divisors (51859017878960).

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

32444323861840 is a wasteful number, since it uses less digits than its factorization.

32444323861840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60341 (or 60335 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 52.

The spelling of 32444323861840 in words is "thirty-two trillion, four hundred forty-four billion, three hundred twenty-three million, eight hundred sixty-one thousand, eight hundred forty".