41645640888 has 128 divisors (see below), whose sum is σ = 117355392000. Its totient is φ = 13682304000.

The previous prime is 41645640793. The next prime is 41645640889. The reversal of 41645640888 is 88804654614.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41645640889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5254993 + ... + 5262911.

It is an arithmetic number, because the mean of its divisors is an integer number (916839000).

Almost surely, 2^41645640888 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 41645640888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58677696000).

41645640888 is an abundant number, since it is smaller than the sum of its proper divisors (75709751112).

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

41645640888 is a wasteful number, since it uses less digits than its factorization.

41645640888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8282 (or 8272 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

The spelling of 41645640888 in words is "forty-one billion, six hundred forty-five million, six hundred forty thousand, eight hundred eighty-eight".