40811385744 has 60 divisors (see below), whose sum is σ = 115498550700. Its totient is φ = 13450939392.

The previous prime is 40811385743. The next prime is 40811385757. The reversal of 40811385744 is 44758311804.

40811385744 is a `hidden beast` number, since 40 + 8 + 1 + 1 + 38 + 574 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6766707600 + 34044678144 = 82260^2 + 184512^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40811385744.

It is not an unprimeable number, because it can be changed into a prime (40811385743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1579389 + ... + 1605020.

It is an arithmetic number, because the mean of its divisors is an integer number (1924975845).

Almost surely, 2^40811385744 is an apocalyptic number.

It is an amenable number.

40811385744 is an abundant number, since it is smaller than the sum of its proper divisors (74687164956).

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

40811385744 is a wasteful number, since it uses less digits than its factorization.

40811385744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184512 (or 3184503 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 40811385744 in words is "forty billion, eight hundred eleven million, three hundred eighty-five thousand, seven hundred forty-four".