40111804511 has 4 divisors (see below), whose sum is σ = 40418001624. Its totient is φ = 39805607400.

The previous prime is 40111804507. The next prime is 40111804567. The reversal of 40111804511 is 11540811104.

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 40111804511 - 2² = 40111804507 is a prime.

It is a super-2 number, since 2×40111804511² (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 (40111804501) 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 3 ways as a sum of consecutive naturals, for example, 153098360 + ... + 153098621.

It is an arithmetic number, because the mean of its divisors is an integer number (10104500406).

Almost surely, 2^40111804511 is an apocalyptic number.

40111804511 is a deficient number, since it is larger than the sum of its proper divisors (306197113).

40111804511 is a wasteful number, since it uses less digits than its factorization.

40111804511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306197112.

The product of its (nonzero) digits is 640, while the sum is 26.

The spelling of 40111804511 in words is "forty billion, one hundred eleven million, eight hundred four thousand, five hundred eleven".