40015405011 has 4 divisors (see below), whose sum is σ = 53353873352. Its totient is φ = 26676936672.

The previous prime is 40015405007. The next prime is 40015405019. The reversal of 40015405011 is 11050451004.

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

It is not a de Polignac number, because 40015405011 - 2² = 40015405007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40015405019) by changing a digit.

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, 6669234166 + ... + 6669234171.

It is an arithmetic number, because the mean of its divisors is an integer number (13338468338).

Almost surely, 2^40015405011 is an apocalyptic number.

40015405011 is a deficient number, since it is larger than the sum of its proper divisors (13338468341).

40015405011 is a wasteful number, since it uses less digits than its factorization.

40015405011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13338468340.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 40015405011 its reverse (11050451004), we get a palindrome (51065856015).

The spelling of 40015405011 in words is "forty billion, fifteen million, four hundred five thousand, eleven".