40344135511 has 8 divisors (see below), whose sum is σ = 40428131184. Its totient is φ = 40260182400.

The previous prime is 40344135509. The next prime is 40344135521. The reversal of 40344135511 is 11553144304.

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

It is a cyclic number.

It is not a de Polignac number, because 40344135511 - 2¹ = 40344135509 is a prime.

It is a super-2 number, since 2×40344135511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40344135521) 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 7 ways as a sum of consecutive naturals, for example, 2471071 + ... + 2487343.

It is an arithmetic number, because the mean of its divisors is an integer number (5053516398).

Almost surely, 2^40344135511 is an apocalyptic number.

40344135511 is a deficient number, since it is larger than the sum of its proper divisors (83995673).

40344135511 is a wasteful number, since it uses less digits than its factorization.

40344135511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21281.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 40344135511 its reverse (11553144304), we get a palindrome (51897279815).

The spelling of 40344135511 in words is "forty billion, three hundred forty-four million, one hundred thirty-five thousand, five hundred eleven".