40013506005 has 16 divisors (see below), whose sum is σ = 69841756224. Its totient is φ = 19400487680.

The previous prime is 40013505989. The next prime is 40013506009. The reversal of 40013506005 is 50060531004.

It is not a de Polignac number, because 40013506005 - 2⁴ = 40013505989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013506009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121252884 + ... + 121253213.

It is an arithmetic number, because the mean of its divisors is an integer number (4365109764).

Almost surely, 2^40013506005 is an apocalyptic number.

It is an amenable number.

40013506005 is a deficient number, since it is larger than the sum of its proper divisors (29828250219).

40013506005 is a wasteful number, since it uses less digits than its factorization.

40013506005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242506116.

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 40013506005 in words is "forty billion, thirteen million, five hundred six thousand, five".