40235553441623 has 4 divisors (see below), whose sum is σ = 40994714827368. Its totient is φ = 39476392055880.

The previous prime is 40235553441583. The next prime is 40235553441637. The reversal of 40235553441623 is 32614435553204.

40235553441623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-40235553441623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40235553443623) 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 3 ways as a sum of consecutive naturals, for example, 379580692793 + ... + 379580692898.

It is an arithmetic number, because the mean of its divisors is an integer number (10248678706842).

Almost surely, 2^{40235553441623} is an apocalyptic number.

40235553441623 is a deficient number, since it is larger than the sum of its proper divisors (759161385745).

40235553441623 is an equidigital number, since it uses as much as digits as its factorization.

40235553441623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759161385744.

The product of its (nonzero) digits is 5184000, while the sum is 47.

Adding to 40235553441623 its reverse (32614435553204), we get a palindrome (72849988994827).

The spelling of 40235553441623 in words is "forty trillion, two hundred thirty-five billion, five hundred fifty-three million, four hundred forty-one thousand, six hundred twenty-three".