40005404124011 has 4 divisors (see below), whose sum is σ = 40005443831832. Its totient is φ = 40005364416192.

The previous prime is 40005404123969. The next prime is 40005404124053. The reversal of 40005404124011 is 11042140450004.

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

It is an interprime number because it is at equal distance from previous prime (40005404123969) and next prime (40005404124053).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40005404124011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40005404124211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18302246 + ... + 20371131.

It is an arithmetic number, because the mean of its divisors is an integer number (10001360957958).

Almost surely, 2^{40005404124011} is an apocalyptic number.

40005404124011 is a deficient number, since it is larger than the sum of its proper divisors (39707821).

40005404124011 is a wasteful number, since it uses less digits than its factorization.

40005404124011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39707820.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 40005404124011 its reverse (11042140450004), we get a palindrome (51047544574015).

The spelling of 40005404124011 in words is "forty trillion, five billion, four hundred four million, one hundred twenty-four thousand, eleven".