40206411593 has 4 divisors (see below), whose sum is σ = 40214501508. Its totient is φ = 40198321680.

The previous prime is 40206411587. The next prime is 40206411607. The reversal of 40206411593 is 39511460204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15432595984 + 24773815609 = 124228^2 + 157397^2 .

It is a cyclic number.

It is not a de Polignac number, because 40206411593 - 2⁸ = 40206411337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40206411523) 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, 4037498 + ... + 4047443.

It is an arithmetic number, because the mean of its divisors is an integer number (10053625377).

Almost surely, 2^40206411593 is an apocalyptic number.

It is an amenable number.

40206411593 is a deficient number, since it is larger than the sum of its proper divisors (8089915).

40206411593 is an equidigital number, since it uses as much as digits as its factorization.

40206411593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8089914.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 40206411593 its reverse (39511460204), we get a palindrome (79717871797).

The spelling of 40206411593 in words is "forty billion, two hundred six million, four hundred eleven thousand, five hundred ninety-three".