40855244163638 has 8 divisors (see below), whose sum is σ = 61325217919632. Its totient is φ = 20413504857096.

The previous prime is 40855244163589. The next prime is 40855244163653. The reversal of 40855244163638 is 83636144255804.

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

It is a Curzon number.

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, 7058608745 + ... + 7058614532.

It is an arithmetic number, because the mean of its divisors is an integer number (7665652239954).

Almost surely, 2^{40855244163638} is an apocalyptic number.

40855244163638 is a deficient number, since it is larger than the sum of its proper divisors (20469973755994).

40855244163638 is a wasteful number, since it uses less digits than its factorization.

40855244163638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14117224726.

The product of its (nonzero) digits is 66355200, while the sum is 59.

The spelling of 40855244163638 in words is "forty trillion, eight hundred fifty-five billion, two hundred forty-four million, one hundred sixty-three thousand, six hundred thirty-eight".