40441318723 has 16 divisors (see below), whose sum is σ = 43809970176. Its totient is φ = 37109763360.

The previous prime is 40441318663. The next prime is 40441318741. The reversal of 40441318723 is 32781314404.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40441318723 is a prime.

It is a super-4 number, since 4×40441318723⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40441318783) by changing a digit.

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, 4333140 + ... + 4342462.

It is an arithmetic number, because the mean of its divisors is an integer number (2738123136).

Almost surely, 2^40441318723 is an apocalyptic number.

40441318723 is a deficient number, since it is larger than the sum of its proper divisors (3368651453).

40441318723 is a wasteful number, since it uses less digits than its factorization.

40441318723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11274.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 40441318723 in words is "forty billion, four hundred forty-one million, three hundred eighteen thousand, seven hundred twenty-three".