40811068928 has 80 divisors (see below), whose sum is σ = 93764415360. Its totient is φ = 17382905856.

The previous prime is 40811068897. The next prime is 40811068933. The reversal of 40811068928 is 82986011804.

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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 549263 + ... + 619121.

It is an arithmetic number, because the mean of its divisors is an integer number (1172055192).

Almost surely, 2^40811068928 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 40811068928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46882207680).

40811068928 is an abundant number, since it is smaller than the sum of its proper divisors (52953346432).

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

40811068928 is an equidigital number, since it uses as much as digits as its factorization.

40811068928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70047 (or 70031 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 47.

The spelling of 40811068928 in words is "forty billion, eight hundred eleven million, sixty-eight thousand, nine hundred twenty-eight".