40521140555342 has 8 divisors (see below), whose sum is σ = 60827514688416. Its totient is φ = 20245302325872.

The previous prime is 40521140555321. The next prime is 40521140555387. The reversal of 40521140555342 is 24355504112504.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40521140555342.

It is a congruent number.

It is an unprimeable number.

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, 7633972583 + ... + 7633977890.

It is an arithmetic number, because the mean of its divisors is an integer number (7603439336052).

Almost surely, 2^{40521140555342} is an apocalyptic number.

40521140555342 is a deficient number, since it is larger than the sum of its proper divisors (20306374133074).

40521140555342 is a wasteful number, since it uses less digits than its factorization.

40521140555342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15267951802.

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 40521140555342 its reverse (24355504112504), we get a palindrome (64876644667846).

The spelling of 40521140555342 in words is "forty trillion, five hundred twenty-one billion, one hundred forty million, five hundred fifty-five thousand, three hundred forty-two".