40042145460011 has 4 divisors (see below), whose sum is σ = 40042174231800. Its totient is φ = 40042116688224.

The previous prime is 40042145459977. The next prime is 40042145460017. The reversal of 40042145460011 is 11006454124004.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40042145460011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40042145460011.

It is not an unprimeable number, because it can be changed into a prime (40042145460017) 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, 12186206 + ... + 15119123.

It is an arithmetic number, because the mean of its divisors is an integer number (10010543557950).

Almost surely, 2^{40042145460011} is an apocalyptic number.

40042145460011 is a deficient number, since it is larger than the sum of its proper divisors (28771789).

40042145460011 is a wasteful number, since it uses less digits than its factorization.

40042145460011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28771788.

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 40042145460011 its reverse (11006454124004), we get a palindrome (51048599584015).

The spelling of 40042145460011 in words is "forty trillion, forty-two billion, one hundred forty-five million, four hundred sixty thousand, eleven".