40553342421 has 8 divisors (see below), whose sum is σ = 54722582880. Its totient is φ = 26709831792.

The previous prime is 40553342407. The next prime is 40553342477. The reversal of 40553342421 is 12424335504.

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

It is not a de Polignac number, because 40553342421 - 2⁹ = 40553341909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40553342021) 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, 81432166 + ... + 81432663.

It is an arithmetic number, because the mean of its divisors is an integer number (6840322860).

Almost surely, 2^40553342421 is an apocalyptic number.

It is an amenable number.

40553342421 is a deficient number, since it is larger than the sum of its proper divisors (14169240459).

40553342421 is a wasteful number, since it uses less digits than its factorization.

40553342421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162864915.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 40553342421 its reverse (12424335504), we get a palindrome (52977677925).

The spelling of 40553342421 in words is "forty billion, five hundred fifty-three million, three hundred forty-two thousand, four hundred twenty-one".