40400235265171 has 8 divisors (see below), whose sum is σ = 43379208703584. Its totient is φ = 37488205050240.

The previous prime is 40400235265147. The next prime is 40400235265223. The reversal of 40400235265171 is 17156253200404.

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

It is a cyclic number.

It is not a de Polignac number, because 40400235265171 - 2⁹ = 40400235264659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40400235265111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16735804620 + ... + 16735807033.

It is an arithmetic number, because the mean of its divisors is an integer number (5422401087948).

Almost surely, 2^{40400235265171} is an apocalyptic number.

40400235265171 is a deficient number, since it is larger than the sum of its proper divisors (2978973438413).

40400235265171 is a wasteful number, since it uses less digits than its factorization.

40400235265171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33471611741.

The product of its (nonzero) digits is 201600, while the sum is 40.

Adding to 40400235265171 its reverse (17156253200404), we get a palindrome (57556488465575).

The spelling of 40400235265171 in words is "forty trillion, four hundred billion, two hundred thirty-five million, two hundred sixty-five thousand, one hundred seventy-one".