40881070064 has 20 divisors (see below), whose sum is σ = 79211701704. Its totient is φ = 20439340608.

The previous prime is 40881070033. The next prime is 40881070081. The reversal of 40881070064 is 46007018804.

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 3 ways as a sum of consecutive naturals, for example, 250679 + ... + 380265.

Almost surely, 2^40881070064 is an apocalyptic number.

It is an amenable number.

40881070064 is a deficient number, since it is larger than the sum of its proper divisors (38330631640).

40881070064 is a wasteful number, since it uses less digits than its factorization.

40881070064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149312 (or 149306 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

Adding to 40881070064 its reverse (46007018804), we get a palindrome (86888088868).

It can be divided in two parts, 408810 and 70064, that added together give a palindrome (478874).

The spelling of 40881070064 in words is "forty billion, eight hundred eighty-one million, seventy thousand, sixty-four".