40443999999 has 8 divisors (see below), whose sum is σ = 58073435952. Its totient is φ = 24888615360.

The previous prime is 40443999989. The next prime is 40444000007. The reversal of 40443999999 is 99999934404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40443999999 - 2⁴ = 40443999983 is a prime.

It is a super-2 number, since 2×40443999999² (a number of 22 digits) contains 22 as substring.

40443999999 is a modest number, since divided by 999999 gives 40443 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40443999949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 518512782 + ... + 518512859.

It is an arithmetic number, because the mean of its divisors is an integer number (7259179494).

Almost surely, 2^40443999999 is an apocalyptic number.

40443999999 is a deficient number, since it is larger than the sum of its proper divisors (17629435953).

40443999999 is a wasteful number, since it uses less digits than its factorization.

40443999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037025657.

The product of its (nonzero) digits is 102036672, while the sum is 69.

The spelling of 40443999999 in words is "forty billion, four hundred forty-three million, nine hundred ninety-nine thousand, nine hundred ninety-nine".