40641063384 has 64 divisors (see below), whose sum is σ = 107081107200. Its totient is φ = 12818307456.

The previous prime is 40641063377. The next prime is 40641063451. The reversal of 40641063384 is 48336014604.

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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321142 + ... + 429434.

It is an arithmetic number, because the mean of its divisors is an integer number (1673142300).

Almost surely, 2^40641063384 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 40641063384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53540553600).

40641063384 is an abundant number, since it is smaller than the sum of its proper divisors (66440043816).

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

40641063384 is a wasteful number, since it uses less digits than its factorization.

40641063384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109144 (or 109140 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 39.

Adding to 40641063384 its reverse (48336014604), we get a palindrome (88977077988).

The spelling of 40641063384 in words is "forty billion, six hundred forty-one million, sixty-three thousand, three hundred eighty-four".