40344000511 has 4 divisors (see below), whose sum is σ = 40371428224. Its totient is φ = 40316572800.

The previous prime is 40344000509. The next prime is 40344000523. The reversal of 40344000511 is 11500044304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40344000511 - 2¹ = 40344000509 is a prime.

It is a super-2 number, since 2×40344000511² (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 (40344004511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13711650 + ... + 13714591.

It is an arithmetic number, because the mean of its divisors is an integer number (10092857056).

Almost surely, 2^40344000511 is an apocalyptic number.

40344000511 is the 89827-th centered decagonal number.

40344000511 is a deficient number, since it is larger than the sum of its proper divisors (27427713).

40344000511 is a wasteful number, since it uses less digits than its factorization.

40344000511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27427712.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 40344000511 its reverse (11500044304), we get a palindrome (51844044815).

The spelling of 40344000511 in words is "forty billion, three hundred forty-four million, five hundred eleven", and thus it is an aban number.